Passively Q-switched Tm:YAP laser based on WSe2/CuO heterojunction saturable absorber

IF 2 3区物理与天体物理 Q3 OPTICS

Applied Physics B Pub Date : 2024-09-05 DOI:10.1007/s00340-024-08311-z

Yiheng Yang, Lulu Gao, Yingxue Han, Qiong Gao, Ruijun Lan, Yingjie Shen

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引用次数: 0

Abstract

WSe₂ and CuO belong to transition metal chalcogenides (TMDs) and transition metal oxides (TMOs), respectively, and both are semiconductor materials that have been applied in production in many fields. In this work, WSe₂/CuO heterojunction nanocomposites were prepared by simple and non-toxic liquid phase exfoliation (LPE) and vacuum filtration methods, and WSe₂/CuO heterojunction saturable absorber (SA) devices were prepared by film transfer technology. The morphology and purity of the WSe₂/CuO heterojunction were studied. In addition, the WSe₂/CuO heterojunction SA was applied to a passively Q-switched (PQS) solid-state laser for the first time, generating a stable pulse output with a Watt-level output power, a maximum average output power of 2.32 W, a repetition frequency of 68.68 kHz, and a minimum pulse width of 752.8 ns. Our research results illustrate the great potential and broad application prospects of WSe₂/CuO composites in the field of photonic devices.

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基于 WSe2/CuO 异质结可饱和吸收器的无源 Q 开关 Tm:YAP 激光器

WSe2和CuO分别属于过渡金属瑀（TMDs）和过渡金属氧化物（TMOs），都是半导体材料，已应用于多个领域的生产中。本研究采用简单无毒的液相剥离法（LPE）和真空过滤法制备了WSe2/CuO异质结纳米复合材料，并通过薄膜转移技术制备了WSe2/CuO异质结可饱和吸收器（SA）器件。研究了 WSe2/CuO 异质结的形貌和纯度。此外，还首次将 WSe2/CuO 异质结 SA 应用于被动 Q 开关（PQS）固体激光器，产生了瓦特级输出功率的稳定脉冲输出，最大平均输出功率为 2.32 W，重复频率为 68.68 kHz，最小脉冲宽度为 752.8 ns。我们的研究成果说明了 WSe2/CuO 复合材料在光子器件领域的巨大潜力和广阔应用前景。

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来源期刊

Applied Physics B 物理-光学

CiteScore

4.00

自引率

4.80%

发文量

202

审稿时长

3.0 months

期刊介绍： Features publication of experimental and theoretical investigations in applied physics Offers invited reviews in addition to regular papers Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more 94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field. In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.