期刊
OPTICS EXPRESS
卷 23, 期 4, 页码 4804-4813出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.004804
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资金
- High Energy Laser Joint Technology Office through a Multidisciplinary Research Initiative
- Emory University [FA9550-13-1-0002]
- Air Force Research Laboratory/AFMC (COTR) [FA8650-12-C-2312]
- Air Force Office of Scientific Research
- Physical Sciences Inc.
The optically pumped rare-gas metastable laser is a chemically inert analogue to three-state optically pumped alkali laser systems. The concept requires efficient generation of electronically excited metastable atoms in a continuous-wave (CW) electric discharge in flowing gas mixtures near atmospheric pressure. We have observed CW optical gain and laser oscillation at 912.3 nm using a linear micro-discharge array to generate metastable Ar(4s, 1s(5)) atoms at atmospheric pressure. We observed the optical excitation of the 1s(5) -> 2p(9) transition at 811.5 nm and the corresponding fluorescence, optical gain and laser oscillation on the 2p(10) <-> 1s(5) transition at 912.3 nm, following 2p(9)-> 2p(10) collisional energy transfer. A steady-state kinetics model indicates efficient collisional coupling within the Ar(4s) manifold. (C) 2015 Optical Society of America
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