title: Optomechanical Enhancement of Doubly Resonant 2D Optical Nonlinearity.
abstract: 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 microelectro-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.
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Fei
authors: F
authors: Yi
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Mingliang
authors: M
authors: Ren
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Jason C
authors: JC
authors: Reed
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Hai
authors: H
authors: Zhu
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Jiechang
authors: J
authors: Hou
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Carl H
authors: CH
authors: Naylor
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: A T Charlie
authors: AT
authors: Johnson
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Ritesh
authors: R
authors: Agarwal
authors: Department of Nanoengineering and ‡Department of Electrical and Computer Engineering, University of California, San Diego , La Jolla, California 92093, United States.|Department of Materials Science and Engineering, ∥Department of Physics and Astronomy, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States.
authors: Ertugrul
authors: E
authors: Cubukcu
keywords: 2D materials; Molybdenum disulfide; nonlinear optics; optomechanics; second harmonic generation