Nonlinear Excitation of Luminescence of Wide-Gap Crystals by Femtosecond Laser Radiation

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2024-08-19 DOI:10.1134/S1062873824707013

V. I. Baryshnikov, O. V. Goreva, T. A. Kolesnikova, O. L. Nikonovich, Yu. A. Murzina

引用次数: 0

Abstract

The features of nonlinear excitation of photoluminescence of wide-gap crystals by femtosecond laser radiation were studied. It was determined that, during multiphoton ionization of the proper substance of crystals, the excitation of intrinsic 2pO^2– valence-band photoluminescence has a long-wavelength threshold. The yield of the impurity photoluminescence excited by the capture of the band electrons and holes induced during the nonlinear ionization of the proper substance reaches saturation with increasing intensity of femtosecond laser pulses.

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飞秒激光辐射对宽隙晶体发光的非线性激发

摘要研究了飞秒激光辐射非线性激发宽隙晶体光致发光的特征。研究发现，在晶体适当物质的多光子电离过程中，本征 2pO2 价带光致发光的激发具有长波长阈值。随着飞秒激光脉冲强度的增加，在晶体非线性电离过程中俘获的价带电子和空穴激发的杂质光致发光的产率达到饱和。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.