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In this paper, a solid-state UV Raman laser pumped at by a Q-switched 532 nm laser that utilizes intracavity sum-frequency mixing to generate more than 20 wavelengths in range 266-321nm, is reported. The Raman laser consisted of a KGd(WO4)2 Raman crystal and beta-barium borate (BBO) crystal positioned in a resonator. The input coupler is highly transmissive at 532 nm and highly reflective for the...
Recent theoretical modelling and experimental results have shown that excess lattice phonon energy created dur ing the non-radiative energy transfer from the 4T2 pump manifold to the 2E storage level in Alexandrite when pumped with wavelengths shorter than ∼645 nm causes chaotic lasing output. Shorter pump wavelengths have also been associated with increased non-radiative energy decay and reduced...
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