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氧碘化学激光器运行模式对其脉冲化影响的模拟研究

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Indexed by: Journal Article

Date of Publication: 2012-05-23

Journal: 物理学报

Included Journals: CSCD、ISTIC、PKU

Volume: 61

Issue: 10

Page Number: 184-188

ISSN: 1000-3290

Key Words: 碘原子;脉冲;氧碘化学激光;超音速

Abstract: 根据氧碘化学激光器的反应机理建立了一维预混脉冲出光理论模型,从理论上研究了气体总压力在660—2660Pa,温度在150—400K区间内对单脉冲能量、脉宽和峰值功率的影响.分析了气体总压和温度对出光特性影响的内在原因.计算结果表明:增益介质温度对单脉冲能量的影响要远大于对激光脉宽的影响;增益介质温度在150K,气体总压在1330Pa可以获得比温度在400K,气体总压为2660Pa时更高的峰值功率.因此在不干扰超音速流动状态条件下瞬间大量产生碘原子,可以实现高效的脉冲氧碘化学激光器.

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