Abstract:
A Raman spectrometer with a two-frequency laser excitation source is considered. It is proposed to use a sensitive optoacoustic detector with a condenser microphone to record the Raman gain. This spectrometer should make it possible to carry out high-resolution studies of lines due to the stimulated Raman scattering in gaseous media at low ($\gtrsim10^{-5}$ atm) partial pressures.
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