CONTINUOUS WAVE GENERATION OF COHERENT VIBRATIONAL ANTI-STOKES SPECTRA

摘要

INVENTION: CONTINUOUS WAVE GENERATION OF COHERENT VIBRATIONALANTI-STOKES SPECTRAINVENTORS: JOSEPH J. BARRETTRICHARD F. BEGLEYABSTRACT OF THE DISCLOSUREA method and apparatus for spectroscopic materialanalysis are provided. Two coherent, continuous beams of mono-chromatic radiation are directed through a sample of material. Atuning mechanism adjusts the frequency difference between theradiation beams to equal substantially the vibrational frequencyof a preselected constituent of the material. Radiation scatteredby the material is received by a filtering mechanism adapted totransmit selectively an anti-Stokes signal generated coherentlyduring scattering. The signal is received by a detectingmechanism which indicates the intensity thereof.