ZnO微管：形成机制和低语廊模式激光

IF 0.5 4区材料科学 Q4 CRYSTALLOGRAPHY

Crystallography Reports Pub Date : 2025-05-05 DOI:10.1134/S1063774524602685

A. P. Tarasov, L. A. Zadorozhnaya, B. V. Nabatov, V. M. Kanevsky

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引用次数: 0

摘要

采用光致发光光谱法研究了改进热蒸发法制备的ZnO微管的发光和激光特性。结果表明，在近紫外范围内，窃窃私语通道模式是产生激光的主要原因。证明了实现低激光阈值（低至~8 kW/cm2）和高光学质量因子（高于3900）的可能性。提出了一种形成这种微晶体的机制，该机制基于沿[0001]晶体学方向同时生长和蚀刻的假设。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

ZnO Microtubes: Formation Mechanism and Whispering Gallery Mode Lasing

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ZnO Microtubes: Formation Mechanism and Whispering Gallery Mode Lasing

The luminescent and lasing properties of ZnO microtubes synthesized by a modified thermal evaporation method have been studied by photoluminescence spectroscopy. It is shown that whispering gallery modes are responsible for lasing in the near-UV range. The possibility of achieving low lasing thresholds (down to ~8 kW/cm²) and high optical quality factors (above 3900) is demonstrated. A mechanism for forming such microcrystals is proposed, which is based on the assumption of simultaneous growth and etching along the [0001] crystallographic direction.

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来源期刊

Crystallography Reports 化学-晶体学

CiteScore

1.10

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.