首页> 外文期刊>Optics Letters >Heterogeneous layered structures for improved terahertz generation
【24h】

Heterogeneous layered structures for improved terahertz generation

机译:改进太赫兹生成的异质分层结构

获取原文
获取原文并翻译 | 示例
           

摘要

One of the most effective ways of generating terahertz (THz) radiation involves the conversion of short-pulsed IR or visible laser light into THz pulses at significantly lower frequencies. This conversion can be accomplished using organic crystals with nonlinear optical crystal (NLO) properties for IR to THz conversion through optical rectification. Due to the high refractive indices of organic crystals, pump laser light as well as generated THz radiation is lost from reflections at crystal surfaces. Here we report a structure composed of a layered series of materials with intermediate refractive indices designed to reduce reflective losses and improve the THz generation from organic crystals. This structure increases the transmission coefficients for both infrared pump input and THz output. We combine simple theoretical calculations with experimental data to show that a structure composed of materials with intermediate refractive indices can be used to increase generated THz intensity by nearly 50%. (C) 2020 Optical Society of America
机译:产生太赫兹(Thz)辐射的最有效方法之一包括在显着较低的频率下将短脉冲IR或可见光光转换为THz脉冲。该转化可以使用具有非线性光学晶体(NLO)性能的有机晶体的有机晶体来完成,用于通过光学整流来转换。由于有机晶体的高折射率,泵激光以及产生的THz辐射损失了晶体表面的反射。在这里,我们报告了由具有中间折射率的分层系列材料组成的结构,所述中间折射率旨在减少反射损耗并改善来自有机晶体的THz产生。该结构增加了红外泵输入和THz输出的传输系数。我们将简单的理论计算与实验数据相结合,表明由中间折射率的材料组成的结构可用于将产生的THz强度增加近50%。 (c)2020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