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Proceedings Paper

Recent progress in high-power para-H2 and ortho-D2 Raman lasers
Author(s): Akira Suda; Hideo Tashiro; Takuya Takasaki; Kazumi Sato; Keigo Nagasaka
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Paper Abstract

A variety of infrared rotational Raman lasers developed at RIKEN for the purpose of molecular laser isotope separation are described. One of the major advances is that annular pump beams from an unstable resonator of a TEA CO2 power oscillator can be efficiently converted to Stokes beams in a multiple pass cell, which results in an increase in the total efficiency of the para-H2 Raman laser system. The annular pump beams are used to generate second Stokes waves in ortho-D2, which provide a number of lines different from those of first Stokes waves in para-H2 in the 13 - 18 micrometer spectral range. First Stokes generation using the S(2) transition of ortho-D2 at room temperature is also described.

Paper Details

Date Published: 4 April 1997
PDF: 9 pages
Proc. SPIE 2987, Gas and Chemical Lasers and Applications II, (4 April 1997); doi: 10.1117/12.271557
Show Author Affiliations
Akira Suda, RIKEN-The Institute of Physical and Chemical Research (Japan)
Hideo Tashiro, RIKEN-The Institute of Physical and Chemical Research (Japan)
Takuya Takasaki, Science Univ. of Tokyo (Japan)
Kazumi Sato, Science Univ. of Tokyo (Japan)
Keigo Nagasaka, Science Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 2987:
Gas and Chemical Lasers and Applications II
Robert C. Sze; Ernest A. Dorko, Editor(s)

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