Gold nanorods as saturable absorbers for the passively Q-switched Nd:LLF laser at 1.34 μm

被引：1

作者：

钱启璋 ^{[1
]}

王南 ^{[2
]}

赵圣之 ^{[1
]}

李桂秋 ^{[1
]}

李涛 ^{[1
]}

李德春 ^{[1
]}

杨克建 ^{[1
]}

臧婕 ^{[1
]}

马厚义 ^{[2
]}

机构：

[1] School of Information Science and Engineering, and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University

[2] Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University

来源：

Chinese Optics Letters | 2019年 / 17卷 / 04期

关键词：

OC; SA; kHz; Nd; Gold nanorods as saturable absorbers for the passively Q-switched Nd:LLF laser at 1.34;

D O I：

暂无

中图分类号：

TN248 [激光器];

学科分类号：

0803 ; 080401 ; 080901 ;

摘要：

Gold nanorods(GNRs) with two different aspect ratios were successfully utilized as saturable absorbers(SAs) in a passively Q-switched neodymium-doped lutetium lithium fluoride(Nd:LLF) laser emitting at 1.34 μm. Based on the GNRs with an aspect ratio of five, a maximum output power of 1.432 W was achieved, and the narrowest pulse width was 328 ns with a repetition rate of 200 kHz. But, in the case of the GNRs with the aspect ratio of eight, a maximum output power of 1.247 W was achieved, and the narrowest pulse width was 271 ns with a repetition rate of 218 kHz. Our experimental results reveal that the aspect ratios of GNRs have different saturable absorption effects at a specific wavelength. In other words, for passively Q-switched lasers at a given wavelength, we are able to select the most suitable GNRs as an SA by changing their aspect ratio.

引用

页码：61 / 65

页数：5

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