放電激勵XeF(BX)準(zhǔn)分子激光器的高效率運(yùn)轉(zhuǎn)
HIGH-EFFICIENCY OPERATION OF A DISCHARGE-EXCITED XeF(BX) EXCIMER LASER
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摘要: 在一臺X射線預(yù)電離的XeF(BX)準(zhǔn)分子激光器中,我們應(yīng)用磁開關(guān)隔離的預(yù)脈沖-主脈沖放電激勵電路和磁脈沖壓縮技術(shù),研究了激光輸出能量和轉(zhuǎn)換效率對氣體組份、總氣壓、電路參數(shù)和延遲時(shí)間的依賴關(guān)系,激光性能獲得較大改進(jìn)。當(dāng)放電體積為0.11L,氣體混合物(NF3/Xe/Ne)的總氣壓為2.5105 Pa時(shí),激光輸出能量345 mJ,總效率達(dá)3％。
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關(guān)鍵詞:
- 準(zhǔn)分子激光器; 預(yù)脈沖-主脈沖激勵電路; 轉(zhuǎn)換效率
Abstract: In an X-ray preionized XeF(BX) discharge-excited laser driven by a prepulse-main pulse circuit with magnetic isolation and a pulse compressor the dependances of the laser output and conversion efficiency on gas composition, total gas pressure, circuit parameters and delay time were experimentally investigated. A considerable improvement in the laser performance was achieved. An output energy of 345 mJ with an overall efficiency of 3% was obtained from an active volume of 0.11L at a total gas pressure of 2.5105 Pa in a NF3/Xe/Ne mixture. -
Litzenberger L, Mandl A. Increased XeF(BX) laser efficiency at high pump rate and elevated temperature[J].Appl. Phys. Lett.1988, 52(19):1557-1559[2]Fisher C H, et al. High efficiency XeCl laser with spiker and magnetic isolation[J].Appl. Phys. Lett.1986, 48(23):1574-1576[3]Smilanski I, Buron S R, Burkes T R. Electrical excitation of an XeCl laser using magnetic pulse compression[J].Appl. Phys. Lett.1982, 40(7):547-548[4]Gerritsen J W, et al. High efficiency operation of a gas discharge XeCl laser using a magnetically induced resonant voltage overshoot circuit[J].J. Appl. Phys.1990, 67(7):3517-3519 -
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