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Volume 14, Issue 4
Displaying 1-7 of 7 articles from this issue
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Akira MURAI1986 Volume 14 Issue 4 Pages 288-289
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
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Hidemi TAKAHASHI, Minoru KIMURA1986 Volume 14 Issue 4 Pages 290-300
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
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Tatsuo HARADA, Toshiaki KITA1986 Volume 14 Issue 4 Pages 301-308
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
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Kaoru SUZUKI, Yukihiro SEKIGUCHI, Tetsuya TANIYAMA, Takaya MASUTANI1986 Volume 14 Issue 4 Pages 309-315
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSSmall lens arrays are processed on methyl meth-acrylate plate by the irradiation of a stepped-scanning YAG-laser focused beam. The localized refractive-index change distribution of each lens produced by the optical damage looks like the hypabolic secon shape, and the maximum refractive-index difference of the lens is 0.002. The lens radius is 0.85 mm. Those small lenses have been formed with the 5×1 and 4×3 lens arrays at 2 mm intervals.View full abstractDownload PDF (1013K) -
Shinichiro AOSHIMA, Yutaka TSUCHIYA1986 Volume 14 Issue 4 Pages 316-325
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSA colliding pulse mode-locked ring dye laser generating 88-fs pulses has been constructed. To produce the shortest pulse duration, the optimum condition concerning with the curvature of mirrors, the slit-width of the jet nozzle, pressure and concentration for a saturable absorber is discussed. In addition, fluctuations of the pulse-repetition rate are experimentally investigated in detail. As a result, it is shown that there are basically two types of fluctuation: jitter and drift, of which main reasons are vibration of the jet stream of saturable absorber and temperature dependence of the cavity length.View full abstractDownload PDF (1069K) -
Akira ENDOW, Masayoshi WATANABE, Shuntaro WATANABE1986 Volume 14 Issue 4 Pages 326-340
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSA low impedance electron beam system has been developed to pump a 70 ns, 200 J-class Kr F laser in a face to face configuration. The laser was designed as a power amplifier of a tera-watt picosecond excimer laser system. Two modules of 2 ohm impedance electron beam gun were driven by double parallel plate Blumlein circuits with 500 k V rail-gaps as main switches to pump gain medium uniformly from both sides with the guide magnetic field of 1 k Gauss. The energy deposited in the 42 litter laser gain region was measured by several diagnostics to determine the energy transfer efficiency and the spatial uniformity of energy deposition. The 500 k V rail-gap was triggered by a compact Kr F laser with reduced switching time and jitter of 20 ns and 1.9 ns, respectively. The laser triggering of the rail-gap enabled the exact synchronization of amplifier chain as well as improved operation of this system.View full abstractDownload PDF (1721K) -
Hidetsugu YOSHIDA, Kunio YOSHIDA, Chiyoe YAMANAKA, Mitsuaki ABE, Yoshi ...1986 Volume 14 Issue 4 Pages 341-345
Published: April 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSAn actively mode-locked Nd: GGG oscillator has been developed. Amplitude stability, pulse width, and single pulse energy are measured with respect to their dependence on modulation depth of the active modulator and Q-switch loss. It exhibits excellent amplitude stability of less than ±3% and high single pulse energy of 90μJ.View full abstractDownload PDF (507K)
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