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应用科学学报 ›› 2000, Vol. 18 ›› Issue (3): 202-207.

• 论文 • 上一篇    下一篇

一个新LiNbO3晶体探测器理论计算方法

王玉森, 程东方, 赵冷柱   

  1. 上海大学物理系, 上海 200436
  • 收稿日期:1999-11-18 修回日期:2000-01-18 出版日期:2000-09-30 发布日期:2000-09-30
  • 作者简介:王玉森(1975-),男,山东安邱人,硕士生.

A New Crystal LiNbO3 Detector Calculating Method

WANG Yu-sen, CHENG Dong-fang, ZHAO Leng-zhu   

  1. Department of physics, Shanghai University, Shanghai 200436, China
  • Received:1999-11-18 Revised:2000-01-18 Online:2000-09-30 Published:2000-09-30

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摘要： 对一种新的用于超快电磁脉冲检测的晶体探测器,首次给出一个普遍情况下的理论计算方法,用此方法,不需要将任意辐射场下产生的折射率二次方程标准化,而可以在原主轴坐标系中直接将测量值△φ与辐射场强E0。连系起来.根据辐射场在晶体中分布与超快脉冲群速度失配,还给出了探测器制作的尺寸要求。

关键词: 超快电磁脉冲辐射, LiNbO3微带天线, 非均匀相移, 电光采样检测, 主轴系统

Abstract: For a new crystal LiNbO3 detector, a new theoretic calculating method is presented for the first time. In this method, the phase retardation is directly related to the radiation field without the standardization of quadratic equation under the arbitrary field. Taking into account of the distribution of the field and group velocity mismatch we also give the optimized size of the new detector.

Key words: ultra fast electromagnetic radiation, electro-optic sampling detection, LiNbO3 microstrip antenna, principal axis system, non-uniform phase retardatio

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