フレオン系化合物の誘導ブリルアン散乱特性

吉田 英次*; 長沢 宗幸*; 岡田 大; 藤田 尚徳*; 中塚 正大*; Park, H.*

レーザー研究, 36(9), p.566 - 572, 2008/09

http://ci.nii.ac.jp/naid/10024339066

Heavy fluorocarbons and perfluoropolyether liquids are ideal media for high power stimulated Brillouin scattering experiments from ultraviolet to infrared laser. Stimulated Brillouin scattering (SBS) reflectivity and threshold of new SBS liquids were measured systematically at four wavelengths (1064, 532, 355 and 266 nm). Fluorinert FC-72, -75, -77 and Galden HT-70, -135 exhibits high reflectivity of over 90 percents and excellent fidelity in phase conjugation for over 100 mJ, 10 ns optical pulse at 1064, 532 and 355 nm. Among them, FC-77 and HT-70 were found to be good candidates to replace FC-72, -75 liquids which previously were known to be a good SBS media up to now. Heavy fluorocarbons and perfluoropolyether liquids are most promising as a phase conjugate SBS mirror for all solid-state high-energy lasers because of its high damage threshold and low absorbance.