Excitonic Emission of Monolayer Semiconductors Near-Field Coupled to High-Q Microresonators

被引：57

作者：

Javerzac-Galy, Clement ^{[1
]}

Kumar, Anshuman ^{[1
]}

Schilling, Ryan D. ^{[1
]}

Piro, Nicolas ^{[1
]}

Khorasani, Sina ^{[2
]}

Barbone, Matteo ^{[3
]}

Goykhman, Ilya ^{[3
]}

Khurgin, Jacob B. ^{[4
]}

Ferrari, Andrea C. ^{[3
]}

Kippenberg, Tobias J. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys, CH-1015 Lausanne, Switzerland

[2] Univ Vienna, Vienna Ctr Quantum Sci & Technol VCQ, A-1090 Vienna, Austria

[3] Univ Cambridge, Cambridge Graphene Ctr, Cambridge CB3 0FA, England

[4] Johns Hopkins Univ, Dept Elect & Comp Engn, Baltimore, MD 21218 USA

来源：

NANO LETTERS | 2018年 / 18卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

2D materials; whispering gallery mode resonator; electronic and optical properties; WSe2; transition metal dichalcogenides; 2-DIMENSIONAL MATERIALS; DYNAMICS; GRAPHENE; SILICA; LASERS; MONO; WS2;

D O I：

10.1021/acs.nanolett.8b00749

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present quantum yield measurements of single layer WSe2 (1L-WSe2) integrated with high-Q (Q > 10(6)) optical microdisk cavities, using an efficient (eta > 90%) near-field coupling scheme based on a tapered optical fiber. Coupling of the excitonic emission is achieved by placing 1L-WSe2 in the evanescent cavity field. This preserves the microresonator high intrinsic quality factor (Q > 10(6)) below the bandgap of 1L-WSe2. The cavity quantum yield is QY(c) approximate to 10(-3), consistent with operation in the broad emitter regime (i.e., the emission lifetime of 1L-WSe2 is significantly shorter than the bare cavity decay time). This scheme can serve as a precise measurement tool for the excitonic emission of layered materials into cavity modes, for both in plane and out of plane excitation.

引用

页码：3138 / 3146

页数：9

共 65 条

[1]

AJAYI OA, 2017, 2D MATER, V4, DOI DOI 10.1088/2053-1583/AA6AA1

[2] Near-unity photoluminescence quantum yield in MoS2 [J].

Amani, Matin ;

Lien, Der-Hsien ;

Kiriya, Daisuke ;

Xiao, Jun ;

Azcatl, Angelica ;

Noh, Jiyoung ;

Madhvapathy, Surabhi R. ;

Addou, Rafik ;

Santosh, K. C. ;

Dubey, Madan ;

Cho, Kyeongjae ;

Wallace, Robert M. ;

Lee, Si-Chen ;

He, Jr-Hau ;

Ager, Joel W., III ;

Zhang, Xiang ;

Yablonovitch, Eli ;

Javey, Ali .

SCIENCE, 2015, 350 (6264) :1065-1068

[3] Scrutinizing lasers [J].

不详 .

NATURE PHOTONICS, 2017, 11 (03) :139-139

[4]

[Anonymous], 1995, CONFINED ELECTRONS P, DOI [DOI 10.1103/PHYSREV.69.37, 10.1007/978-1-4615-1963-8_40]

[5] Controlling the dynamics of a coupled atom-cavity system by pure dephasing [J].

Auffeves, A. ;

Gerace, D. ;

Gerard, J. -M. ;

Santos, M. Franca ;

Andreani, L. C. ;

Poizat, J. -P. .

PHYSICAL REVIEW B, 2010, 81 (24)

[6] DEFINITION OF A LASER THRESHOLD [J].

BJORK, G ;

KARLSSON, A ;

YAMAMOTO, Y .

PHYSICAL REVIEW A, 1994, 50 (02) :1675-1680

[7] Observation of critical coupling in a fiber taper to a silica-microsphere whispering-gallery mode system [J].

Cai, M ;

Painter, O ;

Vahala, KJ .

PHYSICAL REVIEW LETTERS, 2000, 85 (01) :74-77

[8] Rayleigh imaging of graphene and graphene layers [J].

Casiraghi, C. ;

Hartschuh, A. ;

Lidorikis, E. ;

Qian, H. ;

Harutyunyan, H. ;

Gokus, T. ;

Novoselov, K. S. ;

Ferrari, A. C. .

NANO LETTERS, 2007, 7 (09) :2711-2717

[9] Isolation and characterization of few-layer black phosphorus [J].

Castellanos-Gomez, Andres ;

Vicarelli, Leonardo ;

Prada, Elsa ;

Island, Joshua O. ;

Narasimha-Acharya, K. L. ;

Blanter, Sofya I. ;

Groenendijk, Dirk J. ;

Buscema, Michele ;

Steele, Gary A. ;

Alvarez, J. V. ;

Zandbergen, Henny W. ;

Palacios, J. J. ;

van der Zant, Herre S. J. .

2D MATERIALS, 2014, 1 (02)

[10] Nanocavity-Based Determination of Absolute Values of Photoluminescence Quantum Yields [J].

Chizhik, Alexey I. ;

Gregor, Ingo ;

Ernst, Benedikt ;

Enderlein, Joerg .

CHEMPHYSCHEM, 2013, 14 (03) :505-513

← 1 2 3 4 5 6 7 →