标题：Promotion impact of thermal oxidation etching to saturable absorption performance of g-C3N4
作者：Qian, Qizhang ;Kong, Desheng ;Zhao, Shengzhi ;Li, Guiqiu ;Cheng, Xin ;Wang, Nan ;Li, Tao ;Li, Dechun ;Yang, Kejian ;Zang, Jie
作者机构：[Qian, Qizhang ;Zhao, Shengzhi ;Li, Guiqiu ;Li, Tao ;Li, Dechun ;Yang, Kejian ;Zang, Jie ] School of Information Science and Engineering, Shandong Pro 更多
来源：Optics and Laser Technology
摘要：A facile thermal modification method based on thermal oxidation etching was successfully developed as an effective way of improving the photoelectric properties of graphite carbon nitride (g-C3N4), and the as-prepared modified g-C3N4 was employed as the saturable absorber (SA) for a passively Q-switched Nd:LLF laser at 1.06 μm to improve the laser performance. Under the incident pump power of 7.68 W, a pulsed laser output with 110 ns pulse width at 95.5 kHz pulse repetition rate was achieved, which was the narrowest among the g-C3N4 materials used as SAs around 1 μm.
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