DEVICE FOR AMPLIFICATION OF RAMAN SCATTERING OF LIGHT Russian patent published in 2019 - IPC G01N21/65 G01J3/44 B82B1/00 

FIELD: optics.

SUBSTANCE: invention relates to optical sensors and can be used for detecting different substances or other nanosized objects and determining concentration of substances in very small amounts of molecules using Raman scattering. Device for amplification of Raman light scattering includes: a solid multilayer nanostructure containing a substrate of arbitrary thickness with a smooth surface, a reflecting layer, a first optically transparent layer, a SERS-active layer made from an array of nanoparticles, a second optically transparent layer located above the SERS-active layer and a second SERS-active layer separated from the first SERS-active layer by a second optically transparent layer. Second SERS-active layer is made from an array of nanoparticles with average size equal to or less than that of the first SERS-active layer.

EFFECT: technical result consists in improvement of sensitivity of SERS-substrate and wider range of studied substances.

11 cl, 2 dwg