...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Infrared, Millimeter and Terahertz Waves >Temporal Behavior of the Pump Pulses, Residual Pump Pulses, and THz Pulses for D2O Gas Pumped by a TEA CO2 Laser
【24h】

Temporal Behavior of the Pump Pulses, Residual Pump Pulses, and THz Pulses for D2O Gas Pumped by a TEA CO2 Laser

机译：TEA CO2激光泵抽D2O气体的泵脉冲，残余泵脉冲和THz脉冲的时间行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Temporal behavior of the pump pulses, residual pump pulses, and THz pulses for optically pumped D2O gas molecules was investigated by using a tunable TEA CO2 laser as the pumping source. The pulse profiles of pump laser pulses, residual pump pulses, and the THz output pulses were measured, simultaneously, at several different gas pressures. For THz pulse, the pulse delay between the THz pulse and the pump pulse was observed and the delay time was observed to increase from 40 to 70 ns with an increase in gas pressure from 500 to 1700 Pa. Both THz pulse broadening and compression were observed, and the pulse broadening effect transformed to the compression effect with increasing the gas pressure. For the residual pump pulse, the full width at half maximum (FWHM) of the main pulse decreased with increasing gas pressure, and the main pulse disappeared at high gas pressures. The secondary pulses were observed at high gas pressure, and the time intervals of about 518 and 435 ns were observed between the THz output pulse and the secondary residual pump pulse at the pressure of 1400 Pa and 1700 Pa, from which the vibrational relaxation time constants of about 5.45 and 5.55 mu s Torr were obtained.
机译：通过使用可调TEA CO2激光器作为泵浦源，研究了光学泵浦的D2O气体分子的泵浦脉冲，残余泵浦脉冲和太赫兹脉冲的时间行为。在几种不同的气压下，同时测量了泵浦激光脉冲，剩余泵浦脉冲和THz输出脉冲的脉冲轮廓。对于太赫兹脉冲，观察到太赫兹脉冲和泵浦脉冲之间的脉冲延迟，并且观察到延迟时间从40 ns增加到70 ns，并且气压从500升高到1700 Pa。观察到太赫兹脉冲展宽和压缩，随着气体压力的增加，脉冲展宽效应转化为压缩效应。对于残余泵脉冲，主脉冲的半峰全宽（FWHM）随着气压的增加而减小，而主脉冲在高气压下消失。在高压下观察到次级脉冲，在1400 Pa和1700 Pa的压力下，在THz输出脉冲和次级残余泵浦脉冲之间观察到大约518和435 ns的时间间隔，由此得出振动弛豫时间常数获得约5.45和5.55μs的Torr。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号