Two-photon absorption dispersion spectrometer for 153 μm eye-safe Doppler LIDAR

ArticleinOptics Letters 37(13):2457-9 · July 2012with6 Reads
Impact Factor: 3.29 · DOI: 10.1364/OL.37.002457 · Source: PubMed


    Based upon resonant two-photon absorption within a rubidium cell and 780 nm pump light, a birefringent medium for 1.530 μm is induced that changes rapidly with frequency. The birefringence is exploited to build a spectrometer that is capable of measuring the Doppler shift of scattered photons.