Title :
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
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;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
