Han Ying Xue, Wang Huan Li, Ma Xin Zhi, Gao Qiong, Qu Xiurong, Li Lin Jun
Appl Opt. 2025 Aug 1;64(22):6279-6284. doi: 10.1364/AO.565356.
Zirconium disulfide () has gained significant interest as a two-dimensional semiconductor material due to its remarkable nonlinear optical performance. This study fabricated a saturable absorber (SA) via liquid-phase exfoliation, and its nonlinear optical properties were evaluated using the I-scan technique. For the first time, to our knowledge, was employed as an SA to realize a stable 1934 nm passively Q-switching Tm:YAP laser with modulation functionality. At an absorbed pumping power of 3.4 W, the laser generates the shortest pulse width of 590 ns at a pulse repetition frequency of 82.03 kHz, corresponding to a peak power of 8 W. Additionally, the factors of the output laser were measured as 2=1.04 and 2=1.07, indicating excellent beam quality. This study confirms the significant potential of as a high-performance SA for 2 µm pulse generation.
二硫化锆（）因其卓越的非线性光学性能，作为一种二维半导体材料受到了广泛关注。本研究通过液相剥离法制备了一种二硫化锆饱和吸收体（SA），并利用I扫描技术对其非线性光学性质进行了评估。据我们所知，首次将二硫化锆用作饱和吸收体来实现具有调制功能的稳定的1934纳米被动调Q Tm:YAP激光器。在3.4瓦的吸收泵浦功率下，该激光器在82.03千赫兹的脉冲重复频率下产生了590纳秒的最短脉冲宽度，对应峰值功率为8瓦。此外，测得输出激光的M²因子为M² = 1.04和M² = 1.07，表明光束质量优异。本研究证实了二硫化锆作为用于产生2微米脉冲的高性能饱和吸收体的巨大潜力。
