Patent ID: 9528940
Filing Date: 2016-12-27
CPC Classification: G01N

Claim Text:
1. A guided-mode resonance sensor assembly comprising: a waveguide structure including a periodic structure, the waveguide structure being adapted to receive input light from a source of light onto the waveguide structure to cause two or more leaky TE resonant modes and/or two or more leaky TM resonant modes; one or more photodetectors positioned to receive zero order diffracted light during non-control measurement of an analyte having disposed on said waveguide structure or in its immediate environment for detecting changes in one or more of the phase, waveshape and/or magnitude of resonances of at least two different TE guided modes and/or the resonances of at least two different TM guided modes to permit distinguishing between first and second physical states of said waveguide structure or in its immediate environment.