基于金纳米棒可饱和吸收体的Nd:YSAG被动调Q激光器

doi:10.3976/j.issn.1002-4026.2017.01.018

山东科学 ›› 2017, Vol. 30 ›› Issue (1): 109-114.doi: 10.3976/j.issn.1002-4026.2017.01.018

基于金纳米棒可饱和吸收体的Nd:YSAG被动调Q激光器

张倩倩, 刘倩慧，安珍妮，李健

山东师范大学物理与电子科学学院，山东省光学与光子器件技术重点实验室，山东济南 250014

收稿日期:2016-09-06 出版日期:2017-02-20 发布日期:2017-02-20
通信作者: 李健（1963—），男，教授，研究方向为全固态激光器件与非线性光学。E-mail：lijian@sdnu.edu.cn E-mail:lijian@sdnu.edu.cn
作者简介:张倩倩（1991—），女，硕士研究生，研究方向为全固态激光器件。E-mail：794791256@qq.com
基金资助:
国家自然科学基金（61205174）

Nd:YSAG passively Qswitched laser using Au Nanorod as saturable absorber

ZHANG Qian-qian, LIU Qian-hui, AN Zhen-ni, LI Jian

Shandong Provincial Key Laboratory of Optics and Photonic Device，School of Physics and Electronics，Shandong Normal University, Jinan 250014, China

Received:2016-09-06 Online:2017-02-20 Published:2017-02-20

摘要/Abstract

摘要： 以新型金纳米材料为可饱和吸收体，研究了LD端面泵浦的Nd:YSAG被动调Q激光器的激光输出特性。实验中通过调整金纳米棒的长径比等参数，成功地将金纳米棒材料由表面等离子体共振引起的非线性吸收峰调控到Nd:YSAG激光的输出波长1 062 nm处，并成功获得了稳定的被动调Q激光输出，在泵浦功率为4.9 W时，激光器的平均输出功率为14 mW, 此时，激光脉冲宽度为944.1 ns，重复频率100.1 kHz。实验结果表明，金纳米材料在脉冲激光领域具有良好的应用前景。

关键词: Nd: YSAG, 被动调Q, 金纳米棒

Abstract: In this paper, based on Au Nanorod saturable absorber(SA), laser characteristics of LD endpumped passively Qswitched Nd:YASG laser were demonstrated. By controlling the lengthdiameter ratio of the Nanorod, the longitudinal surface plasmon resonance (SPR) absorption peak was located at 1 062 nm. Therefore, passively Qswitching could be achieved by using them. Furthermore, stable passive Qswitched pulses with an average output power of 14 mW was obtained at the pump power of 4.9 W. The minimum pulse width of 944.1 ns was achieved at the pulse repetition rate of 100.1 kHz. The experimental results prove that Au Nanorod is a promising SA for solidstate lasers.

Key words: Nd:YSAG crystal, passively Q-switched, Au Nanorod

中图分类号:

TN248.1

张倩倩, 刘倩慧，安珍妮，李健. 基于金纳米棒可饱和吸收体的Nd:YSAG被动调Q激光器[J]. 山东科学, 2017, 30(1): 109-114.

ZHANG Qian-qian, LIU Qian-hui, AN Zhen-ni, LI Jian. Nd:YSAG passively Qswitched laser using Au Nanorod as saturable absorber[J]. SHANDONG SCIENCE, 2017, 30(1): 109-114.

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基于金纳米棒可饱和吸收体的Nd:YSAG被动调Q激光器

Nd:YSAG passively Qswitched laser using Au Nanorod as saturable absorber

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