Patent ID: 8394329
Filing Date: 2013-03-12
Classification: G01N

Abstract:
1. An agent sensing system, comprising: an emitter optical resonator configured to emit light at one or more system peak wavelengths; a functionalized optical resonator optically coupled to the emitter optical resonator and configured to: receive the emitted light at a first intensity from the emitter optical resonator; propagate the emitted light in the absence of a particular agent; and filter the emitted light in the presence of the particular agent; and a non-functionalized reference optical resonator optically coupled to the functionalized optical resonator and configured to receive and propagate light from the functionalized optical resonator such that a second intensity of the light propagated by the non-functionalized reference optical resonator is based at least on whether the light emitted by the emitter optical resonator is filtered or propagated by the functionalized optical resonator; and a photosensitive device coupled to at least the non-functionalized reference optical resonator and configured to detect the second intensity of light propagating in the non-functionalized reference optical resonator, and to sense the particular agent based on a change between the first and second intensities.