首页> 外文期刊>Comptes rendus. Physique >Laser terahertz emission microscopy
【24h】

Laser terahertz emission microscopy

机译:激光太赫兹发射显微镜

获取原文
获取原文并翻译 | 示例
           

摘要

Laser terahertz (THz) emission microscopy (LTEM) is reviewed. Femtosecond lasers can excite THz waves in various electronic materials due to ultrafast current modulation. The current modulation is realized by the acceleration or deceleration of photo-excited carriers, and thus LTEM visualizes the dynamic photo-response of substances. We construct a free-space type and scanning probe type with transmission or reflection modes. The developed systems have a minimum spatial resolution better than 2 pm, which is defined by the laser beam diameter. We present some examples of LTEM applications, such as ferroelectric domain imaging, quantitative supercurrent distribution in high-T-c superconductors, defect detection of MOS devices as well as the visualization of the photo-responses in materials and devices.
机译:审查了激光太赫兹(THz)发射显微镜(LTEM)。飞秒激光由于超快的电流调制,可以激发各种电子材料中的太赫兹波。通过光激发载流子的加速或减速来实现电流调制,因此LTEM可视化了物质的动态光响应。我们构造具有透射或反射模式的自由空间类型和扫描探针类型。所开发的系统具有优于2 pm的最小空间分辨率,该分辨率由激光束直径确定。我们提供LTEM应用的一些示例,例如铁电畴成像,高T-c超导体中的定量超电流分布,MOS设备的缺陷检测以及材料和设备中光响应的可视化。

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