...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optics Letters >Efficient frequency conversion based on resonant four-wave mixing
【24h】

Efficient frequency conversion based on resonant four-wave mixing

机译：基于谐振四波混合的高效频率转换

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

Efficient frequency conversion of photons has important applications in optical quantum technology because the frequency range suitable for photon manipulation and communication usually varies widely. Recently, an efficient frequency conversion system using a double-A four-wave mixing (FWM) process based on electromagnetically induced transparency (EIT) has attracted considerable attention because of its potential to achieve a nearly 100% conversion efficiency (CE). To obtain such a high CE, the spontaneous emission loss in this resonant-type FWM system must be suppressed considerably. A simple solution is to arrange the applied laser fields in a backward configuration. However, the phase mismatch due to this configuration can cause a significant decrease in CE. Here, we demonstrate that the phase mismatch can be effectively compensated by introducing the phase shift obtained by two-photon detuning. Under optimal conditions, we observe a wavelength conversion from 780 to 795 nm with a maximum CE of 91.2% +/- 0.6% by using this backward FWM system at an optical depth of 130 in cold Rb-87 atoms. The current work represents an important step toward achieving lowloss, high-fidelity quantum frequency conversion based on EIT. (C) 2021 Optical Society of America
机译：光子的有效频率转换在光量子技术中有着重要的应用，因为适合光子操纵和通信的频率范围通常变化很大。最近，一种基于电磁感应透明（EIT）的双a四波混频（FWM）高效变频系统引起了广泛关注，因为它有可能实现近100%的变频效率（CE）。为了获得如此高的CE，必须大大抑制这种共振型FWM系统中的自发辐射损耗。一个简单的解决方案是将应用的激光场安排在向后的配置中。然而，由于这种配置导致的相位失配会导致CE的显著降低。在这里，我们证明了通过引入双光子失谐获得的相移可以有效地补偿相位失配。在最佳条件下，我们观察到在冷Rb-87原子中，在130光学深度处，使用这种反向四波混频系统，波长从780 nm转换到795 nm，最大CE为91.2%+/-0.6%。目前的工作是实现基于EIT的低损耗、高保真量子频率转换的重要一步。（2021）美国光学学会

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