Controlling the spontaneous emission rate of monolayer MoS2 in a photonic crystal nanocavity

被引：187

作者：

Gan, Xuetao ^{[1
,2
]}

Gao, Yuanda ^{[3
]}

Mak, Kin Fai ^{[4
]}

Yao, Xinwen ^{[2
]}

Shiue, Ren-Jye ^{[5
]}

van der Zande, Arend ^{[3
]}

Trusheim, Matthew E. ^{[5
]}

Hatami, Fariba ^{[6
]}

Heinz, Tony F. ^{[2
,4
]}

Hone, James ^{[3
]}

Englund, Dirk ^{[5
]}

机构：

[1] Northwestern Polytech Univ, Sch Sci, Xian 710072, Peoples R China

[2] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA

[3] Columbia Univ, Dept Mech Engn, New York, NY 10027 USA

[4] Columbia Univ, Dept Phys, New York, NY 10027 USA

[5] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[6] Humboldt Univ, Dept Phys, D-12489 Berlin, Germany

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 18期

关键词：

LIGHT;

D O I：

10.1063/1.4826679

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on controlling the spontaneous emission (SE) rate of a molybdenum disulfide (MoS2) monolayer coupled with a planar photonic crystal (PPC) nanocavity. Spatially resolved photoluminescence (PL) mapping shows strong variations of emission when the MoS2 monolayer is on the PPC cavity, on the PPC lattice, on the air gap, and on the unpatterned gallium phosphide substrate. Polarization dependences of the cavity-coupled MoS2 emission show a more than 5 times stronger extracted PL intensity than the un-coupled emission, which indicates an underlying cavity mode Purcell enhancement of the MoS2 SE rate exceeding a factor of 70. (c) 2013 Author( s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

引用

页数：4

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