WO2007027194A3 - Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes raman scattering - Google Patents

Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes raman scattering Download PDF

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Publication number
WO2007027194A3
WO2007027194A3 PCT/US2006/006618 US2006006618W WO2007027194A3 WO 2007027194 A3 WO2007027194 A3 WO 2007027194A3 US 2006006618 W US2006006618 W US 2006006618W WO 2007027194 A3 WO2007027194 A3 WO 2007027194A3
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WO
WIPO (PCT)
Prior art keywords
stokes
time
resonant
wave
raman scattering
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PCT/US2006/006618
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French (fr)
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WO2007027194A2 (en
Inventor
Daniel L Marks
Stephen A Boppart
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Univ Illinois
Daniel L Marks
Stephen A Boppart
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Univ Illinois, Daniel L Marks, Stephen A Boppart filed Critical Univ Illinois
Publication of WO2007027194A2 publication Critical patent/WO2007027194A2/en
Publication of WO2007027194A3 publication Critical patent/WO2007027194A3/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/44Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
    • G01J3/4412Scattering spectrometry
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00Products made by additive manufacturing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • G01N2021/653Coherent methods [CARS]
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • G01N2021/653Coherent methods [CARS]
    • G01N2021/656Raman microprobe

Abstract

A method of examining a sample comprises exposing the sample to a pump pulse of electromagnetic radiation for a first period of time, exposing the sample to a stimulant pulse of electromagnetic radiation for a second period of time which overlaps in time with at least a portion of the first exposing, to produce a signal pulse of electromagnetic radiation for a third period of time, and interfering the signal pulse with a reference pulse of electromagnetic radiation, to determine which portions of the signal pulse were produced during the exposing of the sample to the stimulant pulse. The first and third periods of time are each greater than the second period of time.
PCT/US2006/006618 2005-02-28 2006-02-23 Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes raman scattering WO2007027194A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/068,739 US7586618B2 (en) 2005-02-28 2005-02-28 Distinguishing non-resonant four-wave-mixing noise in coherent stokes and anti-stokes Raman scattering
US11/068,739 2005-02-28

Publications (2)

Publication Number Publication Date
WO2007027194A2 WO2007027194A2 (en) 2007-03-08
WO2007027194A3 true WO2007027194A3 (en) 2007-05-24

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US (1) US7586618B2 (en)
WO (1) WO2007027194A2 (en)

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