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首页> 外文会议>ICO20: Optical Devices and Instruments >Study of the frequency spectrum characteristics of ultra-fast photoconductive semiconductor switches
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Study of the frequency spectrum characteristics of ultra-fast photoconductive semiconductor switches

机译：超快光导半导体开关的频谱特性研究

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摘要

According to microwave and circuit theory, the transient response model is established after optically controlled photoconductive semiconductor switches (PCSSs) are radiated by ultra-short light pulse. A method for characterizing frequency spectrum characteristics of PCSSs is presented. A deep investigation of the effect of some structural and physical parameters on the frequency characteristics of PCSSs is made, The findings shows that the carrier life and absorption coefficient of the photoconductive material for manufacturing the switches, the width of the gap, the pulse width of the incident light, the gap capacitance, lead and parasitical inductance have a great effect on the frequency characteristics of PCSSs. PCSSs have ability to produce THz electromagnetic radiation and can be as Teraherz radiation source.
机译：根据微波和电路理论，建立了超短光脉冲辐射光控光电导开关后的瞬态响应模型。提出了一种表征PCSS频谱特性的方法。深入研究了一些结构和物理参数对PCSS频率特性的影响，研究结果表明，用于制造开关的光电导材料的载流子寿命和吸收系数，间隙宽度，脉冲宽度入射光，间隙电容，引线和寄生电感对PCSS的频率特性有很大影响。 PCSS具有产生太赫兹电磁辐射的能力，可以作为太赫兹辐射源。

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