Author Affiliations
Abstract
1 School of Information Science and Engineering, Shandong University, Qingdao 266237, China
2 School of Physics and Technology, University of Jinan, Jinan 250022, China
We report VOx 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 1.34 µm 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 VOx for possible optical modulation in the near-infrared region.
nonlinear optical properties saturable absorber VOx/NaVO3 composite Q-switching Chinese Optics Letters
2022, 20(5): 051601
1 山东大学信息科学与工程学院, 山东 青岛 266237
2 山东大学晶体材料研究所, 山东 济南 250100
时至今日,非线性光学材料在光电子、通信、信息处理等领域的重要作用日益突出,发展新型、优良的非线性光学材料迫在眉睫。与传统的无机非线性光学材料相比,有机非线性光学材料在损伤阈值、响应时间和非线性光学系数上具有决定性优势。沸石咪唑酯骨架结构材料(ZIFs)是一类以咪唑或其衍生物为配体的特殊金属有机骨架结构材料,其以结构多样性、高度的热学和化学稳定性,近年来受到了国内外研究者的关注。本文总结了沸石咪唑酯骨架结构材料制备方法以及非线性光学特性的研究进展,并就沸石咪唑酯骨架结构材料在非线性光学领域的应用前景进行了展望。
材料 非线性光学材料 纳米材料 金属有机纳米骨架 沸石咪唑酯骨架结构 调Q 中国激光
2021, 48(12): 1203001
山东大学信息科学与工程学院, 山东 青岛 266237
自石墨烯发现以来,新型单元素纳米材料以其新奇的光电特性备受关注。特别是近几年来,第五主族元素纳米材料(砷烯、锑烯、铋烯)更是激发了研究人员的极大兴趣。作为一种过渡金属,铋纳米材料一直是材料和光学研究领域的热点之一,在电子器件、光电器件和非线性光学等领域的应用中表现出巨大的潜力和良好的前景。首先,着重从制备、表征和非线性光学特性研究等方面介绍铋纳米材料的相关理论和实验研究工作。接着,总结铋纳米材料的非线性光学性质及其光子学应用规律。最后,对铋纳米材料的发展前景和趋势进行展望和分析。
纳米材料 铋烯 非线性光学性质 锁模 调Q 中国激光
2021, 48(12): 1208002
Author Affiliations
Abstract
School of Information Science and Engineering, Shandong University, Jinan 250100, China
A Kerr-lens, mode-locked YVO4∕Nd:YVO4 laser coupled with an acousto-optic modulator (AOM) Q-switching near 1064 nm was employed to pump an intracavity KTiOPO4 (KTP) optical parametric oscillator. A subnanosecond signal wave near 1572 nm with low repetition rate was realized. At an AOM repetition rate of 8 kHz, the maximum output power was 165 mW. The highest average pulse energy, the shortest duration, and the highest peak power of a mode-locking signal pulse were estimated to be ～10.3 μJ, ～120 ps, and ～82 kW, respectively.
Nonlinear optics Nonlinear optics parametric processes parametric processes Ultrafast lasers Ultrafast lasers Kerr effect Kerr effect Photonics Research
2015, 3(5): 05000260
