The optical sensor contains an optical waveguide (1) with a substrate (104), waveguiding material (105), a cover medium (106) and a waveguide grating structure (101-103). By means of a light source (2), light can be emitted to the waveguide grating structure (101-103) from the substrate side and/or from...http://www.google.fr/patents/US6455004?utm_source=gb-gplus-shareBrevet US6455004 - Optical sensor and optical method for characterizing a chemical or biological substance
Optical sensor and optical method for characterizing a chemical or ...