Polarized Photoluminescence Enhancement of Monolayer MoS2 Coupled with Plasmonic Salisbury-Type Absorber

被引：4
作者：
Li, Wei [1 ,2 ]
Xin, Ming [1 ,2 ]
Lan, Wenze [1 ,2 ]
Bai, Qinghu [1 ,2 ]
Du, Shuo [1 ,2 ]
Wang, Gang [3 ]
Liu, Baoli [1 ,4 ,5 ]
Gu, Changzhi [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, CAS Key Lab Vacuum Phys, Sch Phys Sci, Beijing 100190, Peoples R China
[3] Beijing Inst Technol, Sch Phys, Beijing 100081, Peoples R China
[4] Univ Chinese Acad Sci, CAS Key Lab Vacuum Phys, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China
[5] Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
来源：
LASER & PHOTONICS REVIEWS | 2022年 / 16卷 / 10期
基金：
中国国家自然科学基金; 北京市自然科学基金;
关键词：
localized surface plasmons; perfect absorbers; photoluminescence; polarization; transition metal dichalcogenides; VALLEY POLARIZATION; EMISSION; WS2; COHERENCE; EXCITONS; BANDGAP;
D O I：
10.1002/lpor.202200008
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The plasmon-mediated manipulation of light-matter interaction in 2D atomically transition-metal dichalcogenides (TMDs) critically depends on the design of plasmonic nanostructures to achieve the maximum optical field in TMDs. Here, a metal-isolator-metal Salisbury-type perfect absorber is fabricated to serve as a generator of the localized surface plasmons. The significant photoluminescence (PL) enhancement up to 60-fold is observed experimentally in the monolayer MoS2 on the top of this gold plasmonic hybrid nanostructures. Furthermore, the PL linear polarization can approach approximate to 60% around the peak of exciton emission and is independent on the polarization of the excitation laser. This Salisbury-type plasmon-exciton hybrid system paves a new way to develop optoelectronic devices based on TMDs.
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页数：6
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