360 nm ultra-violet pulse laser emission from an acousto-optical Q-switched, intracavity frequency-doubled pr: YLF - BiB3O6 laser

IF 2 3区物理与天体物理 Q3 OPTICS

Applied Physics B Pub Date : 2025-01-30 DOI:10.1007/s00340-025-08399-x

GuoFeng Xu, Shuxian Wang, Fei Liang, Dazhi Lu, Kui Wu, Huaijin Zhang, Haohai Yu, Pingzhang Yu, Zhengping Wang

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Abstract

For the first time, we realized 360 nm ultraviolet (UV) pulse laser by intracavity frequency doubling of a diode-pumped Q-switched Pr: YLF laser. An acousto-optic modulator was used as the active Q-switcher, and a BiB₃O₆ (BiBO) crystal served as the frequency doubler. A Q-switched laser was successfully obtained at a repetition frequency of 20 kHz, demonstrating excellent performance. Its maximum average output power reached 1.01 W, the maximum single-pulse energy was 50.5 µJ, the minimum pulse duration was merely 30 ns, and the maximum peak power was as high as 1.68 kW. When the repetition frequency was adjusted to 50 kHz, and the absorbed pump power of the 360 nm laser was 6.6 W, this laser’s maximum average output power climbed to 1.36 W, with a corresponding optical conversion efficiency of 20.6%. This novel UV laser is promising to be applied to many fields, such as environmental detection, THz wave generation, spectral analysis, microscopic imaging, and biotechnology.

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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.