CN103774207B - The grower of a kind of chiral crystal and method - Google Patents
The grower of a kind of chiral crystal and method Download PDFInfo
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Abstract
The invention discloses the grower of a kind of chiral crystal and growing method, it is characterized as being this grower and includes laser instrument, polariser, assembly and solution vessel are propagated in light conversion, polariser is arranged on the propagation path of light of the laser beam of laser emitting, light conversion is propagated assembly and is arranged between polariser and solution vessel, the laser beam of laser emitting forms line polarized light after polariser, the line polarized light of polariser output is formed after assembly is propagated in light conversion and expands parallel circle polarized light, what light conversion propagation assembly exported expands parallel circle polarizing light irradiation on the water-soluble chiral crystal saturated solution being contained in solution vessel；Advantage is that this growth cell configuration is simple, easy to operate, coordinate corresponding growing method can control the rotation direction of chiral crystal, be conducive to improving the productivity of the chiral crystal of specific single rotation direction, and the grower of this chiral crystal and growing method are to operator and environmentally friendly.
Description
Technical field
The present invention relates to the growing technology of a kind of chiral crystal, especially relate to grower and the method for a kind of chiral crystal.
Background technology
When polarized light passes through the solution of some crystal or some amorphous material, the phenomenon that its vibration plane rotates with the direction of propagation of light for axis, it is called optical rotation phenomenon, namely this crystalloid or amorphous material have optical activity, are called optical rotatory substance.Owing to the rotation of vibration plane has directivity, therefore optical rotatory substance can be divided into again levorotatory substance and dextro-rotatory substance.Such as the chiral crystal such as quartz crystal, sodium chlorate crystal, sodium bromate crystal just has left-handed and two kinds of structures of dextrorotation.Except having optical rotation phenomenon, these chiral crystals also have obvious effect of dispersion.Under optical electric field effect, this kind of chiral crystal is due to the specificity of its crystal structure, and the electric polarization produced in crystal is uneven distribution state in space, closely causes electric polarization and the non-linear relation of optical electric field of chiral crystal, namely produces optical dispersion effect.
At present, based on the optical dispersion effect of this kind of chiral crystal, multiple optics has been developed that production, for instance optical filter, optoisolator etc..The preparation of the chiral crystals such as the sodium chlorate of one of the important raw materials for production accordingly, as above-mentioned optics just seems very crucial.The chiral crystals such as sodium chlorate prepare generally by the method for aqueous solution cooling or evaporation.These methods in the process of crystal growth usually owing to the factors such as the chirality symmetry breaking of stir speed (S.S.), the acid-base value of solution and degree of supersaturation and crystal cause the rotation direction of chiral crystal to fix, near and cannot be stable the chiral crystal (seed crystal) generating specific rotation direction.Raising along with correlation technique level, research worker utilizes β radiation and the ultrasound wave left and right rotation direction ratio to affect in crystal growing process, and achieve certain effect, but the healthy of operator itself may be had a negative impact by the general excessively complicated and long-term β radiation of these technological means operation；It addition, the method that ultrasound wave controls crystal left and right rotation direction is ripe not enough, especially also have much room for improvement on the productivity controlling specific single rotation direction chiral crystal.
Summary of the invention
The technical problem to be solved is to provide a kind of simple in construction, easy to operate, and the grower of the rotation direction of chiral crystal can be controlled and be conducive to improving the growing method of specific single rotation direction chiral crystal productivity.
This invention address that the technical scheme that above-mentioned technical problem adopts is: the grower of a kind of chiral crystal, including laser instrument, polariser, assembly and solution vessel are propagated in light conversion, described polariser is arranged on the propagation path of light of the laser beam of described laser emitting, described light conversion is propagated assembly and is arranged between described polariser and described solution vessel, the laser beam of described laser emitting forms line polarized light after described polariser, the line polarized light of described polariser output is formed after assembly is propagated in described light conversion and expands parallel circle polarized light, what described light conversion propagation assembly exported expands parallel circle polarizing light irradiation on the saturated solution of the water-soluble chiral crystal being contained in described solution vessel.
Described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described λ/4 phase delay device, described laser beam expanding element and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described solution vessel is arranged on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output forms circularly polarized light after described λ/4 phase delay device, the circularly polarized light of described λ/4 phase delay device output is formed after described laser beam expanding element and expands directional light, and this expands directional light for expanding parallel circle polarized light, what described laser beam expanding element exported expands parallel circle polarizing light irradiation on described reflecting mirror, and the parallel circle polarized light that expands of described reflecting mirror reflection is irradiated on the saturated solution of the water-soluble chiral crystal being contained in described solution vessel straight up.
Described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described laser beam expanding element and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described λ/4 phase delay device and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output is formed after described laser beam expanding element and expands directional light, and this expands directional light for expanding parallel lines polarized light, what described laser beam expanding element exported expands parallel lines polarizing light irradiation on described reflecting mirror, the parallel lines polarized light that expands of described reflecting mirror reflection is formed after described λ/4 phase delay device and expands parallel circle polarized light, and the parallel circle polarized light that expands that described λ/4 phase delay device exports is irradiated on the saturated solution of the water-soluble chiral crystal being contained in described solution vessel straight up.
Described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described λ/4 phase delay device and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described laser beam expanding element and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output forms circularly polarized light after described λ/4 phase delay device, the circularly polarized light of described λ/4 phase delay device output is radiated on described reflecting mirror, the circularly polarized light of described reflecting mirror reflection is formed after described laser beam expanding element and expands directional light, and this expands directional light for expanding parallel circle polarized light, the parallel circle polarized light that expands of described laser beam expanding element output is irradiated on the saturated solution of the water-soluble chiral crystal being contained in described solution vessel straight up.
Described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described laser beam expanding element, described λ/4 phase delay device and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output is radiated on described reflecting mirror, the line polarized light of described reflecting mirror reflection is formed after described laser beam expanding element and expands directional light, and this expands directional light for expanding parallel lines polarized light, what described laser beam expanding element was formed expand, and parallel lines polarized light formed after described λ/4 phase delay device expands parallel circle polarized light, and the parallel circle polarized light that expands that described λ/4 phase delay device exports is irradiated on the saturated solution of the water-soluble chiral crystal being contained in described solution vessel straight up.
Described λ/4 phase delay device is fresnel prism or quarter wave plate；The diameter expanding directional light of described laser beam expanding element output is more than 1 centimetre, so advantageously ensure that expand directional light can the saturated solution of whole water-soluble chiral crystal in complete illumination solution vessel, and then improve the productivity of the chiral crystal of specific single rotation direction.
Described reflecting mirror is placed horizontal by 45° angle, and the area on the perspective plane of the vertical direction of described reflecting mirror is more than the floor space of described solution vessel.
Described laser instrument is He-Ne laser instrument or semiconductor pump laser.
The growing method that the grower of a kind of with described chiral crystal is corresponding, comprises the following steps:
1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulate the relative position of polariser and λ/4 phase delay device, make the circularly polarized light that λ/4 phase delay device output is left-handed；
3. will be equipped with the solution vessel of water-soluble chiral crystal saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, what make light conversion propagation assembly output expands the parallel circle polarizing light irradiation saturated solution to whole water-soluble chiral crystal；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the chiral crystal that dextrorotation seed crystal quantity is dominant.
Or 1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulate the relative position of polariser and λ/4 phase delay device, make the circularly polarized light of λ/4 phase delay device output dextrorotation；
3. will be equipped with the solution vessel of water-soluble chiral crystal saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, what make light conversion propagation assembly output expands the parallel circle polarizing light irradiation saturated solution to whole water-soluble chiral crystal；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the chiral crystal that left-handed seed crystal quantity is dominant.
The growing method that the grower of a kind of with described chiral crystal is corresponding, comprises the following steps:
1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulate the position of polariser and λ/4 phase delay device, make λ/4 phase delay device output left-handed expand parallel circle polarized light；
3. will be equipped with the solution vessel of water-soluble chiral crystal saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, what make light conversion propagation assembly output expands the parallel circle polarizing light irradiation saturated solution to whole water-soluble chiral crystal；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the chiral crystal that dextrorotation seed crystal quantity is dominant.
Or 1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulating the position of polariser and λ/4 phase delay device, what make λ/4 phase delay device output dextrorotation expands parallel circle polarized light；
3. will be equipped with the solution vessel of water-soluble chiral crystal saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, what make light conversion propagation assembly output expands the parallel circle polarizing light irradiation saturated solution to whole water-soluble chiral crystal；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the chiral crystal that left-handed seed crystal quantity is dominant.
Compared with prior art, it is an advantage of the current invention that: the grower of this chiral crystal includes laser instrument, polariser, assembly and solution vessel are propagated in light conversion, light conversion is propagated on the saturated solution expanding parallel circle polarizing light irradiation water-soluble chiral crystal whole in solution vessel of a certain specific rotation direction of assembly output, can the growth of corresponding induction dextrorotation or left-handed chiral crystal, this growth cell configuration is simple, easy to operate, and match with corresponding growing method and can control the rotation direction of chiral crystal, and then be conducive to improving the productivity of the chiral crystal of specific single rotation direction, and the grower of this chiral crystal and growing method are to operator and environmentally friendly.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of the grower of the embodiment of the present invention one；
Fig. 2 is the composition schematic diagram of the grower of the embodiment of the present invention two；
Fig. 3 is the composition schematic diagram of the grower of the embodiment of the present invention three；
Fig. 4 is the composition schematic diagram of the grower of the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one: the grower of a kind of chiral crystal, as shown in Figure 1, it includes laser instrument 1, polariser 2, λ/4 phase delay device 3, laser beam expanding element 4, reflecting mirror 5 and solution vessel 7, polariser 2, λ/4 phase delay device 3, laser beam expanding element 4 and reflecting mirror 5 are set in turn on the propagation path of light of the laser beam of laser instrument 1 outgoing, and solution vessel 7 is placed on clear glass platform 6 and is on the propagation path of light of reflection light of reflecting mirror 5 reflection.The laser beam of laser instrument 1 outgoing forms line polarized light after polariser 2, the line polarized light of polariser 2 output forms circularly polarized light after λ/4 phase delay device 3, the circularly polarized light of λ/4 phase delay device 3 output is formed after laser beam expanding element 4 and expands directional light, and this expands directional light for expanding parallel circle polarized light, what laser beam expanding element 4 exported expands parallel circle polarizing light irradiation on reflecting mirror 5, and the parallel circle polarized light that expands of reflecting mirror 5 reflection is irradiated on the saturated solution of the water-soluble chiral crystal being contained in solution vessel 7 after clear glass platform 6.
Embodiment two: the grower of a kind of chiral crystal, as shown in Figure 2, its building block is similar to embodiment one, being different in that: polariser 2, laser beam expanding element 4 and reflecting mirror 5 are successively set on the propagation path of light of the laser beam of laser instrument 1 outgoing, λ/4 phase delay device 3 and solution vessel 7 are successively set on the propagation path of light of reflection light of reflecting mirror 5 reflection.The line polarized light of polariser 2 output is formed after laser beam expanding element 4 and expands directional light, and this expands directional light for expanding parallel lines polarized light, what laser beam expanding element 4 exported expands parallel lines polarizing light irradiation on reflecting mirror 5, the parallel lines polarized light that expands of reflecting mirror 5 reflection is formed after λ/4 phase delay device 3 and expands parallel circle polarized light, and expanding after parallel circle polarized light passes clear glass platform 6 of λ/4 phase delay device 3 output is irradiated on the saturated solution of the water-soluble chiral crystal being contained in solution vessel 7.
Embodiment three: the grower of a kind of chiral crystal, as shown in Figure 3, its building block is similar to embodiment one, being different in that: polariser 2, λ/4 phase delay device 3 and reflecting mirror 5 are successively set on the propagation path of light of the laser beam of laser instrument 1 outgoing, laser beam expanding element 4 and solution vessel 7 are successively set on the propagation path of light of reflection light of reflecting mirror 5 reflection.The line polarized light of polariser 2 output forms circularly polarized light after λ/4 phase delay device 3, the circularly polarized light of λ/4 phase delay device 3 output is radiated on reflecting mirror 5, the circularly polarized light of reflecting mirror 5 reflection is formed after laser beam expanding element 4 and expands directional light, and this expands directional light for expanding parallel circle polarized light, the parallel circle polarized light that expands of laser beam expanding element 5 output is irradiated on the saturated solution of the water-soluble chiral crystal being contained in solution vessel 7 after clear glass platform 6.
Embodiment four: the grower of a kind of chiral crystal, as shown in Figure 4, its building block is similar to embodiment one, being different in that: polariser 2 and reflecting mirror 5 are successively set on the propagation path of light of the laser beam of laser instrument 1 outgoing, laser beam expanding element 4, λ/4 phase delay device 3 and solution vessel 7 are successively set on the propagation path of light of reflection light of reflecting mirror 5 reflection；The line polarized light of polariser 2 output is radiated on reflecting mirror 5, the line polarized light of reflecting mirror 5 reflection is formed after laser beam expanding element 4 and expands directional light, and this expands directional light for expanding parallel lines polarized light, what laser beam expanding element 4 was formed expand parallel lines polarized light is formed after λ/4 phase delay device 3 and expands parallel circle polarized light, and expanding after parallel circle polarized light passes clear glass platform 6 of λ/4 phase delay device 3 output is irradiated on the saturated solution of the water-soluble chiral crystal being contained in solution vessel 7.
In above-described embodiment one to embodiment four, λ/4 phase delay device 3 all adopts existing quarter wave plate, and wherein, λ represents wavelength；Laser instrument 1 adopts existing He-Ne laser instrument；The diameter of what laser beam expanding element 4 exported expand directional light is more than 1 centimetre；Reflecting mirror 5 is placed horizontal by 45° angle, and the area on the perspective plane of the vertical direction of reflecting mirror 5 is more than the floor space of solution vessel 7；Solution vessel 7 is cylindrical solution vessel, and the diameter expanding parallel circle polarized light that the internal diameter of cylindrical solution vessel exports less than quarter wave plate.Cylindrical solution vessel is except being placed on clear glass platform 6, expanding under the premise that parallel circle polarized light complete illumination does not change to the saturated solution of water-soluble chiral crystal and the polarization state expanding parallel circle polarized light of incidence in guarantee, cylindrical solution vessel can also be fixed by clamping device.
In other specifically application, λ/4 phase delay device 3 can also adopt existing fresnel prism, and laser instrument 1 can also adopt existing semiconductor pump laser.
A kind of growing method corresponding with the grower of the chiral crystal that embodiment one provides, comprises the following steps:
1. open laser instrument 1 and preheat until the power of laser instrument 1 and the light beam of transmitting reach stable；
2. the relative position of polariser and quarter wave plate is regulated so that quarter wave plate exports left-handed or dextrorotation circularly polarized light；
3. will be equipped with the solution vessel 7 of water-soluble chiral crystal saturated solution be placed on clear glass platform 6 and be fixed on the surface of reflecting mirror 5, calibration solution vessel position simultaneously, makes what reflecting mirror 5 reflected to expand the parallel circle polarizing light irradiation saturated solution to whole water-soluble chiral crystal；
4. stand under above-mentioned environment, until precipitating out water white ordered crystal bottom solution vessel 7.
The preparation method of the saturated solution of the water-soluble chiral crystal being applied in above-mentioned growing method, for sodium chlorate saturated solution, comprises the following steps:
1. in exceed the water bath with thermostatic control of 5～10 DEG C than room temperature, with reference to sodium chlorate saturated solution solute saturation at such a temperature, determine the substantially proportioning of sodium chlorate and water, it is continuously added sodium chlorate in the solution vessel fill water, and be sufficiently stirred for, until not re-dissolved when the sodium chlorate in solution is completely dissolved and continuously adds sodium chlorate, namely obtain initial saturated solution.
2., in same water bath with thermostatic control, the initial saturated solution of step 1. middle preparation is filtered, obtains filtrate, filter process to stir in real time, to ensure that the solute precipitated out in filter process can dissolve rapidly and leach with filtrate.
3. by step 2. in filtrate continue stirring about 20 minutes, and during stirring, clear liquid is sealed by plastic sheeting or other material, to prevent other impurity such as dust from entering, acquisition sodium chlorate saturated solution after stir.
4. step 3. in the sodium chlorate saturated solution that obtains, put into rapidly and the grower of chiral crystal carries out left-handed or dextrorotation sodium chlorate crystal growth, next step growth step must be carried out in 5 minutes, in order to avoid seed crystal precipitates out in advance prepared sodium chlorate saturated solution at this after.
Adopting the grower of embodiment one and in conjunction with corresponding growing method, carry out the growth experiment of sodium chlorate crystal, and contrast with control experiment under 25 DEG C of conditions of room temperature, essential condition and experimental result are as follows:
Experiment condition: experimental group and matched group all adopt the sodium chlorate saturated solution of same batch of preparation in the lower 35 DEG C of waters bath with thermostatic control of same humidity.At this, experimental group adopts the grower that embodiment one provides, it is irradiated to sodium chlorate saturated solution by left circularly polarized light and obtains sodium chlorate chiral crystal, the i.e. relative position of polariser 2 and quarter wave plate 3 in regulation experiment device, making the polarization direction of polariser 2 and the optical axis direction of quarter wave plate 3 is 45° angle clockwise, then produces left-handed circularly polarized light；Matched group does not adopt the grower that embodiment one provides, without laser irradiate, with under the identical environment of experimental group, obtain sodium chlorate chiral crystal by conventional aqueous solution cooling method.
Experimental result: observe in growth course, when there being about 1.5mm3And can be taken off when precipitating out with the seed crystal of the profile of upper volume rule, after seed crystal being taken out rapidly with bamboo tweezers (may be used without plastics tweezers) and use lens paper wiped clean.In prepared seed crystal, contouring single sodium chlorate seed crystal clearly carries out rotation direction test, the rotation direction of seed crystal is classified by left and right precession row, result is as shown in table 1, in table 1 "+" represent that the quantity of the dextrorotation sodium chlorate seed crystal that this group growth experiment obtains is dominant, "-" represents that the quantity of the left-handed sodium chlorate seed crystal that this group growth experiment obtains is dominant, "/" represent the dextrorotation that this group growth experiment obtains, left-handed sodium chlorate seed crystal quantity consistent.
Table 1 matched group and the growing state of sodium chlorate crystal in experimental group
Analytical table 1 can obtain: in the experiment that 9 set conditions are identical, can be seen that from the data of experimental group, irradiation through circularly polarized light, the phenomenon that dextrorotation seed crystal quantity is dominant is clearly, and can be seen that from the data of matched group, the quantity of left-handed sodium chlorate seed crystal is dominant, and is dominant with dextrorotation sodium chlorate seed crystal quantity and is more or less the same, it does not have bigger difference.Therefore, the grower of the chiral crystal of the present invention is adopted, under the irradiation of the circularly polarized light of single rotation direction, it is possible to comparatively induce the growth of the chiral crystal of corresponding single rotation direction significantly, and then be conducive to improving the productivity of the chiral crystal of specific single rotation direction.
Claims (10)
1. the grower of a chiral crystal, it is characterized in that including laser instrument, polariser, assembly and solution vessel are propagated in light conversion, described polariser is arranged on the propagation path of light of the laser beam of described laser emitting, described light conversion is propagated assembly and is arranged between described polariser and described solution vessel, the laser beam of described laser emitting forms line polarized light after described polariser, the line polarized light of described polariser output forms diameter after assembly is propagated in described light conversion and more than 1 centimetre and left-handed expands parallel circle polarized light, what described light conversion propagation assembly exported expands parallel circle polarizing light irradiation on the sodium chlorate saturated solution being contained in described solution vessel.
2. the grower of a kind of chiral crystal according to claim 1, it is characterized in that described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described λ/4 phase delay device, described laser beam expanding element and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described solution vessel is arranged on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output forms left-handed circularly polarized light after described λ/4 phase delay device, the left-handed circularly polarized light of described λ/4 phase delay device output forms diameter after described laser beam expanding element and more than 1 centimetre and left-handed expands directional light, and this expands directional light for expanding parallel circle polarized light, the diameter of described laser beam expanding element output is more than 1 centimetre and left-handed expands parallel circle polarizing light irradiation on described reflecting mirror, the diameter of described reflecting mirror reflection more than 1 centimetre and the left-handed parallel circle polarized light that expands be irradiated in straight up on the sodium chlorate saturated solution being contained in described solution vessel.
3. the grower of a kind of chiral crystal according to claim 1, it is characterized in that described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described laser beam expanding element and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described λ/4 phase delay device and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output forms diameter after described laser beam expanding element and expands directional light more than 1 centimetre, and this expands directional light for expanding parallel lines polarized light, the diameter of described laser beam expanding element output expands parallel lines polarizing light irradiation on described reflecting mirror more than 1 centimetre, the diameter of the described reflecting mirror reflection parallel lines polarized light that expands more than 1 centimetre forms diameter after described λ/4 phase delay device and more than 1 centimetre and left-handed expands parallel circle polarized light, the diameter of described λ/4 phase delay device output more than 1 centimetre and the left-handed parallel circle polarized light that expands be irradiated in straight up on the sodium chlorate saturated solution being contained in described solution vessel.
4. the grower of a kind of chiral crystal according to claim 1, it is characterized in that described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser, described λ/4 phase delay device and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described laser beam expanding element and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output forms left-handed circularly polarized light after described λ/4 phase delay device, the left-handed circularly polarized light of described λ/4 phase delay device output is radiated on described reflecting mirror, the left-handed circularly polarized light of described reflecting mirror reflection forms diameter after described laser beam expanding element and more than 1 centimetre and left-handed expands directional light, and this expands directional light for expanding parallel circle polarized light, the diameter of described laser beam expanding element output more than 1 centimetre and the left-handed parallel circle polarized light that expands be irradiated in straight up on the sodium chlorate saturated solution being contained in described solution vessel.
5. the grower of a kind of chiral crystal according to claim 1, it is characterized in that described light conversion is propagated assembly and is made up of λ/4 phase delay device, laser beam expanding element and reflecting mirror, described polariser and described reflecting mirror are successively set on the propagation path of light of laser beam of described laser emitting, and described laser beam expanding element, described λ/4 phase delay device and described solution vessel are successively set on the propagation path of light of the reflection light of described reflecting mirror reflection；The line polarized light of described polariser output is radiated on described reflecting mirror, the line polarized light of described reflecting mirror reflection forms diameter after described laser beam expanding element and expands directional light more than 1 centimetre, and this expands directional light for expanding parallel lines polarized light, the diameter that described laser beam expanding element the is formed parallel lines polarized light that expands more than 1 centimetre forms diameter after described λ/4 phase delay device and more than 1 centimetre and left-handed expands parallel circle polarized light, the diameter of described λ/4 phase delay device output more than 1 centimetre and the left-handed parallel circle polarized light that expands be irradiated in straight up on the sodium chlorate saturated solution being contained in described solution vessel.
6. the grower of a kind of chiral crystal according to any one of claim 2 to 5, it is characterised in that described λ/4 phase delay device is fresnel prism or quarter wave plate.
7. the grower of a kind of chiral crystal according to claim 6, it is characterised in that described reflecting mirror is placed horizontal by 45° angle, and the area on the perspective plane of the vertical direction of described reflecting mirror is more than the floor space of described solution vessel.
8. the grower of a kind of chiral crystal according to any one of claim 1 to 5, it is characterised in that described laser instrument is He-Ne laser instrument or semiconductor pump laser.
9. growing method one kind corresponding with the grower of the chiral crystal described in claim 2 or 4, it is characterised in that comprise the following steps:
1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulate the relative position of polariser and λ/4 phase delay device, make the circularly polarized light that λ/4 phase delay device output is left-handed；
3. will be equipped with the solution vessel of sodium chlorate saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, make light conversion propagate the diameter of assembly output more than 1 centimetre and the left-handed parallel circle polarizing light irradiation that expands to whole sodium chlorate saturated solutions；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the sodium chlorate crystal that dextrorotation seed crystal quantity is dominant.
10. growing method one kind corresponding with the grower of the chiral crystal described in claim 3 or 5, it is characterised in that comprise the following steps:
1. open laser instrument and preheat until the power of laser instrument and the light beam of transmitting reach stable；
2. regulate the position of polariser and λ/4 phase delay device, make λ/4 phase delay device output left-handed expand parallel circle polarized light；
3. will be equipped with the solution vessel of sodium chlorate saturated solution and be fixed on the surface of reflecting mirror, simultaneously calibration solution vessel position, make light conversion propagate the diameter of assembly output more than 1 centimetre and the left-handed parallel circle polarizing light irradiation that expands to whole sodium chlorate saturated solutions；
4. stand under above-mentioned environment, treat to precipitate out bottom solution vessel water white ordered crystal, namely obtain the sodium chlorate crystal that dextrorotation seed crystal quantity is dominant.
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