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金纳米棒饱和吸收体1 μm被动调Q固体激光器

Passively Q-Switched 1 μm Solid-State Laser Using Gold Nanorod as Saturable Absorber

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摘要

受表面等离激元共振效应的影响, 金纳米棒饱和吸收体具有饱和吸收宽带可调、非线性响应时间快等特点, 且便于与各种激光谐振腔整合, 是一种有潜力的宽波段饱和吸收体材料。报道了一种基于金纳米棒饱和吸收体的1 μm波段被动调Q固体激光器。将金纳米棒溶液旋涂于输出镜上, 并将其作为可饱和吸收体构建到激光谐振腔中, 在LD端面抽运Nd∶YVO4激光器中实现了1064 nm被动调Q运转。在抽运功率为7.5 W时获得了平均输出功率为540 mW, 最小脉冲宽度为138 ns, 重复频率为602 kHz的脉冲激光输出。

Abstract

Benefiting from the surface plasmon resonance effect, the gold nanorod saturable absorber possesses the properties of tunable broadband of saturable absorption and fast nonlinear response. It can also easy integrate with a variety of laser resonators, making it a promising saturable absorber with a wide broadband. The passively Q-switched 1 μm solid-state laser using gold nanorods as saturable absorbers is demonstrated. The gold nanorods are directly spin coated on the output coupler, and introduced in the laser resonator as saturable absorbers. Passively Q-switched operation of a LD pump Nd∶YVO4 laser at 1064 nm is realized accordingly. The pulsed laser output with a maximum average output power of 540 mW, a minimum pulse width of 138 ns, and a pulse repetition rate of 602 kHz are achieved when the pump power is 7.5 W.

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中图分类号:TN248.1

DOI:10.3788/cjl201744.0703021

所属栏目:“二维光电材料与器件”专题

基金项目:国家自然科学基金(61308047, 61605068)

收稿日期:2017-01-09

修改稿日期:2017-02-10

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作者单位    点击查看

黄海涛:江苏师范大学物理与电子工程学院, 江苏 徐州 221116江苏省先进激光材料与器件重点实验室, 江苏 徐州 221116
李敏:江苏师范大学物理与电子工程学院, 江苏 徐州 221116
金琳:江苏师范大学物理与电子工程学院, 江苏 徐州 221116
王辉:江苏师范大学物理与电子工程学院, 江苏 徐州 221116
刘翩:江苏师范大学物理与电子工程学院, 江苏 徐州 221116
沈德元:复旦大学光科学与工程系, 上海 200433

联系人作者:黄海涛(hht840211@163.com)

备注:黄海涛(1984-), 男, 博士, 副教授, 主要从事固体激光器件与技术方面的研究。

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引用该论文

Huang Haitao,Li Min,Jin Lin,Wang Hui,Liu Pian,Shen Deyuan. Passively Q-Switched 1 μm Solid-State Laser Using Gold Nanorod as Saturable Absorber[J]. Chinese Journal of Lasers, 2017, 44(7): 0703021

黄海涛,李敏,金琳,王辉,刘翩,沈德元. 金纳米棒饱和吸收体1 μm被动调Q固体激光器[J]. 中国激光, 2017, 44(7): 0703021

被引情况

【1】周丹丹,尹兴良,王煜,姜梦华,惠勇凌,雷訇,李强. 914 nm LD抽运高效率腔倒空电光调Q激光器. 中国激光, 2018, 45(1): 101014--1

【2】万佳宁,林雨,钟莹,刘海涛. 金纳米颗粒对量子点荧光自发辐射的影响. 激光与光电子学进展, 2018, 55(7): 71601--1

【3】周叶,焦明星,连天虹,邢俊红,刘芸,刘健宁. 被动调Q双腔双频Nd∶YAG激光器设计及实验. 中国激光, 2018, 45(12): 1201008--1

【4】林洪沂,刘虹,张顺钦,李昱坤. 基于Co∶MgAl2O4晶体的被动调Q1319 nm Nd∶YAG激光器. 激光与光电子学进展, 2018, 55(12): 121404--1

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