Patent ID: 6765211
Filing Date: 2004-07-20
Classification: G01J,G01N,G01P,G02B

Abstract:
An infrared absorption spectrometer, comprising:a substrate; an optical waveguide having an input end and an output end, said waveguide being adapted for transmitting optical radiation incident on said input end to said output end; and at least one optical microcavity constructed and arranged so as to optically interact with light incident on said input end of said optical waveguide, so that light from said waveguide is coupled into said microcavity; wherein light coupled into said optical microcavity is adapted to interact with at least one of an atomic and a molecular species; and wherein said optical microcavity is configured so that the frequency of at least one resonant mode of said optical cavity matches a vibrational frequency of said at least one of an atomic and a molecular species, so that optical radiation coupled into said optical microcavity and having a frequency substantially equal to said frequency of said at least one resonant mode is absorbed by said at least one of an atomic and a molecular species.