TaSe2 的非线性吸收特性及其在 ~ 2.0 µm 脉冲固体激光器中的应用

IF 2 3区物理与天体物理 Q3 OPTICS Applied Physics B Pub Date : 2024-07-12 DOI:10.1007/s00340-024-08275-0

Lulu Dong, Mengxin Xue, Junting Liu, Kuan Li, Jiawen Lv, Yicheng Jin, Shande Liu

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引用次数: 0

摘要

提高二维（2D）窄带隙材料制成的可饱和吸收体（SA）的性能，对于它们在 ~ 2.0 µm 脉冲激光应用中的应用至关重要。在此背景下，通过机械剥离法成功制造出了高质量的 TaSe2 SA。TaSe2 SA 在 2.0 μm 左右表现出可饱和吸收特性，调制深度为 7.1%，不饱和损耗为 3.1%。利用这种新制造的 SA，实现了工作在 2.0 μm 附近的无源 Q 开关 Tm:YAP 激光器。在最高吸收泵浦功率为 5.58 W 时，激光器产生的最大平均输出功率为 1.34 W，脉冲宽度为 550 ns，频率为 89 kHz。这一性能可转化为 15.0 μJ 的峰值单脉冲能量和 27.27 W 的最大峰值功率。

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The nonlinear absorption properties of TaSe2 and its application in ~ 2.0 µm pulsed solid-state lasers

Enhancing the performance of saturable absorbers (SAs) crafted from two-dimensional (2D) narrow-bandgap materials is crucial for their use in ~ 2.0 µm pulse laser applications. In this context, a high-quality TaSe₂ SA was successfully fabricated by mechanical exfoliation. The TaSe₂ SA exhibited saturable absorption characteristics at around 2.0 μm, with a modulation depth of 7.1% and an unsaturated loss of 3.1%. Utilizing this newly fabricated SA, a passively Q-switched Tm:YAP laser operating near 2.0 μm was achieved. At the highest absorbed pump power of 5.58 W, the laser produced a maximum average output power of 1.34 W, with a pulse width measuring 550 ns at 89 kHz. This performance translates to a peak single pulse energy of 15.0 μJ and a maximum peak power of 27.27 W.

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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.