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Generation of Ultrawideband Electromagnetic Radiation by a Vacuum Photodiode with Anode with a Sapphire Input Window
Technical Physics ( IF 0.7 ) Pub Date : 2021-04-08 , DOI: 10.1134/s1063784221030191
A. V. Potapov , E. V. Zavolokov , A. A. Kondrat’ev , N. A. Pkhaiko , I. A. Sorokin , B. G. Goncharenko , V. A. Luzanov , V. D. Salov

Abstract

Generation of ultrawideband electromagnetic radiation by a vacuum photodiode with a plane cesium antimonide photocathode is studied. Thin aluminum plates deposited on a sapphire input window serve as the anode of the photodiode. Electron emission from the photocathode is initiated by the second-harmonic radiation (λ = 385 nm) of a titanium–sapphire laser system with a pulse duration of about 200 fs. Variations in the electric component of the electromagnetic radiation due to changes of the voltage across the interelectrode gap from 13 to 140 kV are measured.



中文翻译:

带有阳极和蓝宝石输入窗口的真空光电二极管产生超宽带电磁辐射

摘要

研究了带有平面铯锑光电阴极的真空光电二极管产生超宽带电磁辐射的情况。沉积在蓝宝石输入窗口上的薄铝板用作光电二极管的阳极。来自光电阴极的电子发射是由钛-蓝宝石激光系统的二次谐波辐射(λ= 385 nm)引发的,脉冲持续时间约为200 fs。测量了由于跨电极间间隙的电压从13 kV改变为140 kV而引起的电磁辐射的电子成分变化。

更新日期:2021-04-08
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