用皮秒激光泵浦 SrB4O7 垂直微腔产生 199 nm 真空-紫外二次谐波

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-08-20 DOI:10.35848/1882-0786/ad69fe

Tomoaki Nambu, Masashi Yoshimura, Yusuke Mori, Yasufumi Fujiwara, Ryota Ishii, Yoichi Kawakami, Masahiro Uemukai, Tomoyuki Tanikawa, Ryuji Katayama

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引用次数: 0

摘要

我们提出了不利用晶体双折射或铁电性的高效微腔波长转换器件。在这项研究中，我们利用了具有显著波长转换潜力和低至 130 纳米高透明度的低双折射副电性 SrB4O7 晶体，并用皮秒激光成功实现了 199 纳米真空-紫外二次谐波发生（SHG）。199 纳米的波长比 BaB2O4 中 205 纳米的 SHG 理论最小波长还要短。我们的设备可以成为实用的真空紫外 SHG 设备，使真空紫外激光源比传统系统更小、更高效。

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199 nm vacuum-ultraviolet second harmonic generation from SrB4O7 vertical microcavity pumped with picosecond laser

We have proposed highly efficient microcavity wavelength conversion devices that do not utilize the birefringence or ferroelectricity of crystals. In this study, we utilized a low-birefringence paraelectric SrB₄O₇ crystal with significant potential for wavelength conversion and high transparency down to 130 nm and succeeded in achieving 199 nm vacuum-ultraviolet second harmonic generation (SHG) with a picosecond laser. The wavelength of 199 nm is shorter than the theoretical minimum for SHG in BaB₂O₄ of 205 nm. Our device could be a practical vacuum-ultraviolet SHG device, enabling significantly smaller and more efficient vacuum-ultraviolet laser sources compared to conventional systems.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).