Microdisk cavity-coupled MoS2 with tunable narrowband emission

Author

Reed, Jason C. ; Zhu, Alexander Yutong ; Hai Zhu ; Cubukcu, Ertugrul

Author_Institution

Dept. of Mater. Sci. & Eng., Univ. of Pennsylvania, Philadelphia, PA, USA

fYear

2015

fDate

10-15 May 2015

Firstpage

1

Lastpage

2

Abstract

Monolayer MoS₂ has emergent photoluminescence (PL) at the monolayer limit. In this work we incorporate monolayer MoS₂ to a fabricated silica optical resonator microdisk cavity, coupling the PL from the 2-D material to the optical cavity modes. The resultant emission is spectrally narrow, with quality-factors (Q) as high as 900. By subsequently altering the cavity thickness, we are able to tune the position of the emission peaks by more than the free spectral range (FSR) of the cavity modes. This tunability also shows the potential for this device architecture to serve as a highly-sensitive platform for bio-analyte sensing.

Keywords

Q-factor; micro-optics; microcavities; molybdenum compounds; monolayers; optical materials; optical resonators; optical tuning; photoluminescence; silicon compounds; 2-D material; FSR; MoS₂; SiO₂; bioanalyte sensing; cavity thickness; device architecture; emission peak position; free spectral range; highly-sensitive platform; microdisk cavity-coupled MoS₂; monolayer limit; optical cavity modes; photoluminescence; quality-factors; silica optical resonator microdisk cavity; tunability; tunable narrowband emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics (CLEO), 2015 Conference on

Conference_Location

San Jose, CA

Type

conf

Filename

7184407