Patent ID: 9285314
Filing Date: 2016-03-15
CPC Classification: G01N

Claim Text:
1. A system for detecting an analyte comprising: a plasmonic interferometer, the plasmonic interferometer comprising a first surface and a second surface on an opposite side of the plasmonic interferometer than the first surface, the first surface having a first groove and a second groove and a slit disposed between the first groove and the second groove to define a first distance between the slit and the first groove and a second distance between the slit and the second groove, wherein the first and second distances are selected to provide interference of light at the slit; a light source for illuminating the first surface of the plasmonic interferometer; a detector for detecting light transmitted through the slit, the detector positioned proximate to the second surface of the plasmonic interferometer; and a sample holder for disposing a sample to be analyzed onto the first surface of the plasmonic interferometer.