用于Er:GYAP腔MIR调q激光器的非线性TiC纳米片

IF 3.4 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-09-22 DOI:10.1016/j.infrared.2025.106162

Zhentao Wang , Dunlu Sun , Guo Chen , Keqiang Wang , Huili Zhang , Jianqiao Luo , Cong Quan , Kunpeng Dong , Yuwei Chen , Xinjie Li , Hongyuan Li , Shiji Dou , Maojie Cheng

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引用次数: 0

摘要

采用液相剥离法制备了多层碳化钛（TiC）纳米片，并通过电子显微镜和拉曼峰位移对其结构进行了表征。调制深度为8.7%，饱和透过率为88.4%。通过插入Er:GYAP激光腔，TiC可饱和吸收剂（SAs）实现了稳定的无源调q操作，平均输出功率为579 mW，脉冲宽度为168 ns，重复频率为214 kHz，对应的单脉冲能量为2.7µJ，峰值功率为16.1 W。测定了激光光谱范围为2730 ~ 2830 nm，光束质量因子为1.61和1.63。这项工作不仅推动了紧凑型MIR脉冲激光器的发展，而且拓展了过渡金属碳化物在非线性光子学中的潜力。

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Nonlinear TiC nanosheets for MIR Q-switched laser in Er:GYAP cavity

The multilayer titanium carbide (TiC) nanosheets were successfully synthesized via liquid-phase exfoliation and the nanostructure was confirmed by electron microscopes and Raman peaks shifts. The modulation depth was fitted to be 8.7 % with a saturation transmittance of 88.4 %. The TiC saturable absorbers (SAs) enabled stable passive Q-switched operations with inserting in an Er:GYAP laser cavity, achieving an average output power of 579 mW, a pulse width of 168 ns and a repetition rate of 214 kHz, corresponding to a single pulse energy of 2.7 µJ and a peak power of 16.1 W. The laser spectra of 2730–2830 nm and beam quality factors of 1.61 and 1.63 were determined. This work not only advances the development of compact MIR pulsed lasers but also expands the potential of transition metal carbides in nonlinear photonics.

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.