期刊
NANO LETTERS
卷 16, 期 3, 页码 1631-1636出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b04448
关键词
Molybdenum disulfide; 2D materials; nonlinear optics; second harmonic generation; optomechanics
类别
资金
- NSF [NSF 2-DARE, EFMA-1542879]
- ECCS division (Mahmoud Fallahi) [ECCS-1408139]
- MRSEC Program [DMR11-20901]
- U.S. Army Research Office [W911NF-11-1-0024]
- Directorate For Engineering
- Div Of Industrial Innovation & Partnersh [1312202] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1632797] Funding Source: National Science Foundation
Emerging two-dimensional semiconductor materials possess a giant second order nonlinear response due to excitonic effects while the monolayer thickness of such active materials limits their use in practical nonlinear devices. Here, we report 3300 times optomechanical enhancement of second harmonic generation from a MoS2 monolayer in a doubly resonant on-chip optical cavity. We achieve this by engineering the nonlinear light-matter interaction in a rnicroelectro-mechanical system enabled optical frequency doubling device based on an electrostatically tunable Fabry-Perot microresonator. Our versatile optomechanical approach will pave the way for next generation efficient on-chip tunable light sources, sensors, and systems based on molecularly thin materials.
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