Patent ID: 7768640
Filing Date: 2010-08-03
Classification: B82Y,G01N,G02B

Abstract:
1. A sensor adapted to test a sample deposited on a surface of the sensor, the sample having a fluorophore having an excitation spectrum and an emission spectrum, comprising: a photonic crystal comprising a periodic grating structure, the photonic crystal exhibiting a plurality of resonant modes, the resonant modes including an excitation mode having a first resonant spectrum and an extraction mode having a second resonant spectrum; wherein the periodic grating structure is constructed and arranged such that when illuminated with light at an incident angle θ the resonant spectrum of the photonic crystal in the excitation mode at least partially overlaps the excitation spectrum of the fluorophore and simultaneously the resonant spectrum of the photonic crystal in the extraction mode at least partially overlaps the emission spectrum of the fluorophore.