一种太赫兹光产生装置及其光学泵浦太赫兹探测系统
By generating wavefront-tilted laser light through an optical path structure composed of cylindrical mirrors and niobium lithium oxide crystals, and combining optical delay lines and liquid crystal materials, the problems of long time consumption and low signal-to-noise ratio in existing terahertz spectral detection systems are solved, achieving efficient and sensitive terahertz waveform detection.
CN116191171BActive Publication Date: 2026-07-17GUANGZHOU UNIVERSITY
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZHOU UNIVERSITY
- Filing Date
- 2023-03-15
- Publication Date
- 2026-07-17
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Figure CN116191171B_ABST
Abstract
本发明提供了一种太赫兹光产生装置及其光学泵浦太赫兹探测系统，包括依次对应配合设置的第一柱面镜、第二柱面镜、反射光栅、凹面镜、二分之一波片和锂酸铌晶体，入射激光依次经过所述第一个柱面镜、所述第二个柱面镜、所述凹面镜、所述二分之一波片和所述锂酸铌晶体后产生太赫兹光。本发明利用光栅的衍射效应产生波前倾斜的激光，并且利用柱面镜产生大小合适的椭圆光斑，通过相干放大产生强太赫兹光，可以实现某些太赫兹透过率较小的样品的测试。太赫兹探测方式可以通过单脉冲直接测量太赫兹波的完整波形，可以在完成动力学测量的同时测量不同延迟时间下的太赫兹波形，大大提高了测试效率和测试灵敏度。
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