• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Slow light, fast light, and opto-atomic precision metrology VIII >Slow light in ruby: delaying energy beyond the input pulse
【24h】

Slow light in ruby: delaying energy beyond the input pulse

机译：红宝石灯慢：延迟能量超过输入脉冲

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

The mechanism by which light is slowed through ruby has been the subject of great debate. To distinguish between the two main proposed mechanisms, we investigate the problem in the time domain by modulating a laser beam with a chopper to create a clean square wave. By exploring the trailing edge of the pulsed laser beam propagating through ruby, we can determine whether energy is delayed beyond the input pulse. The effects of a time-varying absorber alone cannot delay energy into the trailing edge of the pulse, as a time-varying absorber can only attenuate a coherent pulse. Therefore, our observation of an increase in intensity at the trailing edge of the pulse provides evidence for a complicated model of slow light in ruby that requires more than just pulse reshaping. In addition, investigating the Fourier components of the modulated square wave shows that harmonic components with different frequencies are delayed by different amounts, regardless of the intensity of the component itself. Understanding the difference in delays of the individual Fourier components of the modulated beam reveals the cause of the distortion the pulse undergoes as it propagates through the ruby.
机译：红宝石减慢光线的机理一直是争论的话题。为了区分两个主要提出的机制，我们通过使用斩波器调制激光束以产生干净的方波来研究时域问题。通过探索在红宝石中传播的脉冲激光束的后沿，我们可以确定能量是否延迟到输入脉冲之外。由于时变吸收器只能衰减相干脉冲，因此仅时变吸收器的作用无法将能量延迟到脉冲的后沿。因此，我们观察到脉冲后沿强度增加，为红宝石慢光复杂模型提供了证据，该模型不仅需要脉冲整形。另外，研究调制方波的傅立叶分量表明，具有不同频率的谐波分量会延迟不同的量，而与分量本身的强度无关。了解调制光束的各个傅立叶分量的延迟差异可以揭示脉冲传播通过红宝石时所经历的失真的原因。

著录项

  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者

    Emma Wisniewski-Barker; Graham Gibson; Sonja Franke-Arnold; Zhimin Shi; Paul Narum; Robert W. Boyd; Miles J. Padgett;

  • 作者单位

    University of Glasgow, Department of Physics and Astronomy, SUPA, Glasgow, United Kingdom;

    University of Glasgow, Department of Physics and Astronomy, SUPA, Glasgow, United Kingdom;

    University of Glasgow, Department of Physics and Astronomy, SUPA, Glasgow, United Kingdom;

    Department of Physics, University of South Florida, Tampa, FL 33620, USA;

    The Norwegian Institute for Defense Studies, Oslo, Norway;

    University of Rochester, The Institute of Optics and Department of Physics and Astronomy, Rochester, New York 14627, USA,University of Ottawa, Department of Physics, Ottawa, Ontario, Canada;

    University of Glasgow, Department of Physics and Astronomy, SUPA, Glasgow, United Kingdom;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    slow light; ruby; energy delay; group index;

    机译：慢光红宝石;能量延迟组索引;

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