Title :
One-, two-, and three-photon pumped lasing in a novel liquid dye salt system
Author :
He, Guang S. ; Helgeson, Roger ; Lin, Tzu-Chau ; Zheng, Qingdong ; Wudl, Fred ; Prasad, Paras N.
Author_Institution :
Inst. for Lasers, State Univ. of New York, Buffalo, NY, USA
Abstract :
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.
Keywords :
dye lasers; fluorescence; multiphoton processes; optical limiters; optical pumping; stimulated emission; two-photon processes; 0.532 micron; 1.06 micron; 1.49 micron; effective dye concentration; far-field intensity distributions; lasing spectra; liquid dye salt system; liquid gain medium; multiphoton pumped lasing; near-field intensity distributions; one-photon pumped lasing; optical power limiting applications; output/input efficiency; pulsed coherent radiation pulses; temporal waveforms; three-photon pumped lasing; two-photon pumped lasing; Biomedical optical imaging; Electromagnetic wave absorption; Frequency; Helium; Laser excitation; Optical materials; Optical pulses; Optical pumping; Solids; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.814372
