气体碰撞射流中太赫兹辐射产生过程的指向性图和强度控制

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Pub Date : 2021-08-29 DOI:10.1109/IRMMW-THz50926.2021.9566974

A. Balakin, V. Gildenburg, N. Kuzechkin, P. Solyankin, I. Pavlichenko, Yiming Zhu, A. Shkurinov

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引用次数: 0

摘要

由惰性气体团组成的超音速射流被认为是高功率飞秒激光系统泵浦的太赫兹(THz)辐射源。本文介绍了优化团簇射流中产生的太赫兹辐射强度和图型的实验研究结果，并证明在一定的射流激发条件下，可以形成沿激光束传播方向辐射最大强度太赫兹波的团簇灯丝。假设现象学模型与实验结果吻合良好，并能很好地解释观测到的现象。

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Controlling directivity pattern and intensity of THz radiation during its generation in a gas-clatter jet

A supersonic jet consisting of noble gas clusters is considered as a source of terahertz (THz) radiation pumped by high-power femtosecond laser system. We present the results of experimental studies on optimizing the intensity and diagram pattern of the THz radiation generated in cluster jet and demonstrate that under certain conditions of the jet excitation, it is possible to form a cluster filament that radiates THz waves with a maximum intensity along the direction of the laser beam propagation. Provided phenomenological model is in a good agreement with experimental results and well explains observed phenomenon.

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2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)

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