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

Masayuki Kakehata; Etsu Hashimoto; Fumihiko Kannari; Minoru Obara

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: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	185-189
Number of pages	5
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1397
Issue number	pt 1
Publication status	Published - 1991 Jan 1
Event	8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2) - Madrid, Spain Duration: 1990 Sept 10 → 1990 Sept 14

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H₂. / Kakehata, Masayuki; Hashimoto, Etsu; Kannari, Fumihiko et al.
In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 1397, No. pt 1, 01.01.1991, p. 185-189.

Research output: Contribution to journal › Conference article › peer-review

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

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.",

author = "Masayuki Kakehata and Etsu Hashimoto and Fumihiko Kannari and Minoru Obara",

year = "1991",

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language = "English",

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pages = "185--189",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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T1 - Frequency up-conversion of a discharge pumped molecular fluorine laser by stimulated Raman scattering in H2

AU - Kakehata, Masayuki

AU - Hashimoto, Etsu

AU - Kannari, Fumihiko

AU - Obara, Minoru

PY - 1991/1/1

Y1 - 1991/1/1

N2 - 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.

AB - 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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M3 - Conference article

AN - SCOPUS:0025885944

SN - 0277-786X

VL - 1397

SP - 185

EP - 189

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

IS - pt 1

T2 - 8th International Symposium on Gas Flow and Chemical Lasers Part 1 (of 2)

Y2 - 10 September 1990 through 14 September 1990

ER -

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

Abstract

ASJC Scopus subject areas

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