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17 February 2011 Cesium laser operating in the blue by direct optical excitation of the 72P3/2 state
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Abstract
A blue alkali laser operating by direct optical excitation of the 72P3/2 state of cesium is demonstrated. A mixture of cesium vapor and various buffer gases (4He, CH4, C2H6) were pumped with the output of a pulsed dye laser in a heated glass cell. The spin-orbit mixing and fluorescence quenching cross sections were calculated for each buffer gas using the time-dependent D1 (459 nm) side fluorescence. At certain temperatures and buffer gas pressures, a spatially coherent blue beam is produced in the forward direction. An analysis of the spectrum shows this beam contains both D1 amplified spontaneous emission (ASE) and Stimulated Raman Scattering (SRS).
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Kirk C. Brown and Glen P. Perram "Cesium laser operating in the blue by direct optical excitation of the 72P3/2 state", Proc. SPIE 7915, High Energy/Average Power Lasers and Intense Beam Applications V, 791507 (17 February 2011); https://doi.org/10.1117/12.875380
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