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Proceedings Paper

Generation of a high intensity far-infrared pulse by second Stokes scattering in a para-hydrogen Raman laser
Author(s): A. Tsunemi
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Paper Abstract

The para-H2 Raman laser has been developed intensively as a high intensity tunable laser source in the wave-length range of 13-18μm. The successive conversion to the second Stokes wave can expand wavelength up to 46μm. However, the increase of wave-length is accompanied by the substantial decrease of Raman gain. Practically, the wavelength which is obtained by the second Stakes conversion re- mains below 30μm even with the use of a liquid-nitrogen-cooled Raman cell1). In this report, we generate a high intensity far-infrared pulse from a para-H2 Raman laser being operated at room temperature as the second Stokes wave. The longest wavelength extended to 42.5μm. Powers of the pump pulse and the first Stokes pulse were fully depleted and the converted energy was estimated to be more than 100 mJ with a pulsewidth of about 50 ns.

Paper Details

Date Published: 1 October 1991
PDF: 2 pages
Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15761I (1 October 1991); doi: 10.1117/12.2297767
Show Author Affiliations
A. Tsunemi, Science Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 1576:
16th International Conference on Infrared and Millimeter Waves
Minh Quang Tran, Editor(s)

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