VO_(x)/NaVO_(3) nanocomposite as a novel saturable absorber for passive Q-switching operation  

作　　者：Linghao Kong Hongwei Chu Na Li Han Pan Shengzhi Zhao Dechun Li 孔令豪;褚宏伟;李娜;潘瀚;赵圣之;李德春(School of Information Science and Engineering,Shandong University,Qingdao 266237,China;School of Physics and Technology,University of Jinan,Jinan 250022,China)

机构地区：[1]School of Information Science and Engineering,Shandong University,Qingdao 266237,China [2]School of Physics and Technology,University of Jinan,Jinan 250022,China

出　　处：《Chinese Optics Letters》2022年第5期24-28,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 12174223, 12004213, 21872084, and 62175128);the Young Scholar Program of Shandong University for the financial support

摘　　要：We report VO_(x)/NaVO_(3) nanocomposite as a novel saturable absorber for the first time,to the best of our knowledge.The efficient nonlinear absorption coefficient and the modulation depth are determined by the Z-scan technology.As a saturable absorber,a passively Q-switched Nd-doped bulk laser at 1.34μm is demonstrated,producing the shortest pulse duration of 129 ns at a repetition rate of 274 kHz.In the passively Q-switched Tm:YLF laser with the prepared saturable absorber,the shortest pulse duration was 292 ns with a repetition rate of 155 kHz.Our work confirmed the saturable absorption in VO_(x)/NaVO_(3) for possible optical modulation in the near-infrared region.

关 键 词：nonlinear optical properties saturable absorber VO_(x)/NaVO_(3)composite O-switching 

分 类 号：TB332[一般工业技术—材料科学与工程]