Photonic-crystal-based broadband graphene saturable absorber

被引：13

作者：

Zhang, Saifeng ^{[1
]}

Shen, Caoran ^{[1
]}

Kislyakov, Ivan M. ^{[1
]}

Dong, Ningning ^{[1
]}

Ryzhov, Anton ^{[2
]}

Zhang, Xiaoyan ^{[1
]}

Belousova, Inna M. ^{[2
]}

Nunzi, Jean-Michel ^{[1
,3
,4
]}

Wang, Jun ^{[1
,5
,6
,7
]}

机构：

[1] Chinese Acad Sci, Lab Micronano Optoelect Mat & Devices, Key Lab Mat High Power Laser, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[2] SI Vavilov State Opt Inst, Inst Laser Phys, St Petersburg 199053, Russia

[3] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada

[4] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada

[5] Chinese Acad Sci, State Key Lab High Field Laser Phys, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[6] CAS Ctr Excellence Ultraintense Laser Sci, Shanghai 201800, Peoples R China

[7] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

OPTICS LETTERS | 2019年 / 44卷 / 19期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

ABSORPTION; PERFORMANCE; FIBER;

D O I：

10.1364/OL.44.004785

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The enhanced saturable absorption (SA) of a one-dimensional (1D) photonic crystal (PC) made from polymers and graphene composites by spin coating is observed. It shows obvious bandgaps at two wavelengths in transmittance. Femtosecond Z-scan measurement at 515 nm and 1030 nm reveals a distinct enhancement in the effective nonlinear absorption coefficient beta(eff) for graphene nanoflakes embedded in the PC, when compared with the bulk graphene-polymer composite. The effect is studied in a wide range of laser intensities. Graphene inclusion into a 1D PC remarkably decreases the SA threshold and saturation intensity, providing a desired solution for an advanced all-optical laser mode-locking device. (C) 2019 Optical Society of America.

引用

页码：4785 / 4788

页数：4

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