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One-, two-, and three-photon pumped lasing in a novel liquid dye salt system

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6 Author(s)
He, G.S. ; Inst. for Lasers, State Univ. of New York, Buffalo, NY, USA ; Helgeson, Roger ; Lin, Tzu-Chau ; Qingdong Zheng
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We report the observation of one-, two-, and three-photon pumped lasing in the same medium, a novel liquid dye salt system when excited by pulsed 0.532-, 1.06-, and ∼1.49-μm coherent radiation pulses, respectively. Since the gain medium is a liquid and not a solution, it contains a significantly higher effective dye concentration and, therefore, is highly suitable for multiphoton pumped lasing and optical power limiting applications. The lasing spectra, temporal waveforms, near- and far-field intensity distributions, and output/input efficiency were measured under the conditions of one-, two-, and three-photon pump configurations.

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Quantum Electronics, IEEE Journal of  (Volume:39 ,  Issue: 8 )