多晶石墨的宽带发射

IF 0.9 4区工程技术 Q3 Engineering

Quantum Electronics Pub Date : 2022-04-01 DOI:10.1070/qel18018

S. Rekhviashvili, D. Gaev, Z. Margushev

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引用次数: 0

摘要

研究了多晶石墨在电和激光激发下的可见辐射光谱。结果表明，在该材料中实现了两种不同的宽带光谱光子发射机制。电阻加热产生的辐射是热辐射，其参数与黑体辐射的参数接近。激光诱导的二次辐射在可见光范围内为反斯托克斯发光。从细粒石墨的激光诱导辐射的红移相对于类似光谱的散装样品被观察到。

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Broadband emission from polycrystalline graphite

Visible radiation spectra of polycrystalline graphite under electrical and laser excitation is studied. It is shown that two different mechanisms of photon emission with a broadband spectrum are implemented in this material. The radiation arising as a result of resistive heating is thermal radiation, whose parameters are close to those of blackbody radiation. The laser-induced secondary radiation in the visible range is anti-Stokes luminescence. A red shift of the laser-induced radiation from fine-grained graphite with respect to the similar spectrum of a bulk sample is observed.

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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.