不同类型受激光散射下透镜焦平面泵浦辐射空间结构的形成

IF 0.9 4区工程技术 Q3 Engineering

Quantum Electronics Pub Date : 2022-04-01 DOI:10.1070/qel18013

A. Gordeev, V. F. Efimkov, I. Zubarev

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引用次数: 0

摘要

为了证实我们提出的关于短焦透镜焦平面内激光束结构衰减性质的假设，我们重新研究了钕激光辐射在甲苯中二次谐波的受激热散射实验。实验在类似的条件下进行，但使用的是液体(CCl4)，在这种液体中，钕激光的二次谐波辐射没有双光子吸收。短句来源研究了数值孔径NA ~ 0.1的短焦透镜聚焦Nd: YAG激光辐射在甲苯中的二次谐波的空间结构衰减与双光子吸收有关。

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Formation of the spatial structure of pump radiation in the focal plane of a lens for different types of stimulated light scattering

Experiments of our earlier work on the study of stimulated thermal scattering of the second harmonic of neodymium laser radiation in toluene are reproduced in order to confirm the put forward hypothesis about the nature of the laser beam structure decay in the focal plane of a short-focus lens. Experiments were carried out under similar conditions, but with a liquid (CCl4), in which there is no two-photon absorption of the second harmonic radiation from a neodymium laser. A conclusion is made that the spatial structure decay of the laser beam of the second harmonic of the Nd : YAG laser radiation focused by short-focus lenses with a numerical aperture NA ∼ 0.1 in toluene is associated with two-photon absorption.

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来源期刊

Quantum Electronics 工程技术-工程：电子与电气

CiteScore

3.00

自引率

11.10%

发文量

审稿时长

3-6 weeks

期刊介绍： Quantum Electronics covers the following principal headings Letters Lasers Active Media Interaction of Laser Radiation with Matter Laser Plasma Nonlinear Optical Phenomena Nanotechnologies Quantum Electronic Devices Optical Processing of Information Fiber and Integrated Optics Laser Applications in Technology and Metrology, Biology and Medicine.