Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2

Masayuki Kakehata, Etsu Hashimoto, Fumihiko Kannari, Minoru Obara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

By exciting 10-atm He/F2 gas mixtures by electric discharge at 66MW/cm3, a specific output energy of 2.9J/1 (83mJ) has been obtained in the F2 laser (157.6nm). To extend an available laser wavelength region with high output laser energies in the vacuum ultraviolet, frequency conversion of the laser radiation by stimulated Raman scattering in H2 has been demonstrated for the first time. The laser energy focused into a Raman cell was about 10mJ (22ns FWHM), which corresponds to the focused intensity of 141MW/cm2. At H2 pressure of 5atm, 1st and 2nd Stokes lines (168.6nm, 181.4nm) and 1st anti-Stokes line (147.9nm) were observed. The energy conversion efficiency was approx. 10% for the 1st Stokes line, approx.2% for the 2nd Stokes line, and approx.0.8% for the 1st anti-stokes line at a 10atm H2.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJose M. Orza, C. Domingo
PublisherPubl by Int Soc for Optical Engineering
Pages185-189
Number of pages5
Volume1397
Editionpt 1
Publication statusPublished - 1991
Event8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) - Madrid, Spain
Duration: 1990 Sep 101990 Sep 14

Other

Other8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2)
CityMadrid, Spain
Period90/9/1090/9/14

Fingerprint

Stimulated Raman scattering
Fluorine
fluorine
Raman spectra
Lasers
lasers
electric discharges
energy conversion efficiency
frequency converters
laser outputs
Electric discharges
gas mixtures
energy
Laser radiation
Full width at half maximum
Energy conversion
Gas mixtures
laser beams
Conversion efficiency
vacuum

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kakehata, M., Hashimoto, E., Kannari, F., & Obara, M. (1991). Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2. In J. M. Orza, & C. Domingo (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pt 1 ed., Vol. 1397, pp. 185-189). Publ by Int Soc for Optical Engineering.

Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2. / Kakehata, Masayuki; Hashimoto, Etsu; Kannari, Fumihiko; Obara, Minoru.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Jose M. Orza; C. Domingo. Vol. 1397 pt 1. ed. Publ by Int Soc for Optical Engineering, 1991. p. 185-189.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kakehata, M, Hashimoto, E, Kannari, F & Obara, M 1991, Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2. in JM Orza & C Domingo (eds), Proceedings of SPIE - The International Society for Optical Engineering. pt 1 edn, vol. 1397, Publ by Int Soc for Optical Engineering, pp. 185-189, 8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2), Madrid, Spain, 90/9/10.
Kakehata M, Hashimoto E, Kannari F, Obara M. Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2. In Orza JM, Domingo C, editors, Proceedings of SPIE - The International Society for Optical Engineering. pt 1 ed. Vol. 1397. Publ by Int Soc for Optical Engineering. 1991. p. 185-189
Kakehata, Masayuki ; Hashimoto, Etsu ; Kannari, Fumihiko ; Obara, Minoru. / Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2. Proceedings of SPIE - The International Society for Optical Engineering. editor / Jose M. Orza ; C. Domingo. Vol. 1397 pt 1. ed. Publ by Int Soc for Optical Engineering, 1991. pp. 185-189
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abstract = "By exciting 10-atm He/F2 gas mixtures by electric discharge at 66MW/cm3, a specific output energy of 2.9J/1 (83mJ) has been obtained in the F2 laser (157.6nm). To extend an available laser wavelength region with high output laser energies in the vacuum ultraviolet, frequency conversion of the laser radiation by stimulated Raman scattering in H2 has been demonstrated for the first time. The laser energy focused into a Raman cell was about 10mJ (22ns FWHM), which corresponds to the focused intensity of 141MW/cm2. At H2 pressure of 5atm, 1st and 2nd Stokes lines (168.6nm, 181.4nm) and 1st anti-Stokes line (147.9nm) were observed. The energy conversion efficiency was approx. 10{\%} for the 1st Stokes line, approx.2{\%} for the 2nd Stokes line, and approx.0.8{\%} for the 1st anti-stokes line at a 10atm H2.",
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