Multi-order phononic frequency comb generation within a MoS2electromechanical resonator
Document Type
Article
Publication Date
10-25-2021
Abstract
In this work, we measure and tune simultaneously the vibration of a 1-nm thick MoS2 suspended monolayer with standard electrical excitation and optical techniques. At ambient temperature, we first investigate the strong parametric coupling between two different mechanical modes (ω1 and ω2). We demonstrate a high and quasi-linear tunability of the mode frequencies with the parametric pump voltage. Then, we couple the highly tunable main vibration (ω1) to a parametric pump frequency (ωp) to obtain a high number of sidebands at frequencies ω1 ± m ωp, driving the mechanical mode with a large external electrical force. This oscillating force, applied via the gate voltage, acts as a stress onto the MoS2 sheet. The obtained frequency comb has a large spectral band and contains up to 100 harmonics, with potential applications in quantum information processing and heat or sound transport.
Identifier
85118440402 (Scopus)
Publication Title
Applied Physics Letters
External Full Text Location
https://doi.org/10.1063/5.0059015
ISSN
00036951
Issue
17
Volume
119
Grant
ANR-19-CE24-0021
Fund Ref
Nanjing Institute of Technology
Recommended Citation
Chiout, Anis; Correia, Franck; Zhao, Meng Qiang; Johnson, A. T.Charlie; Pierucci, Debora; Oehler, Fabrice; Ouerghi, Abdelkarim; and Chaste, Julien, "Multi-order phononic frequency comb generation within a MoS2electromechanical resonator" (2021). Faculty Publications. 3729.
https://digitalcommons.njit.edu/fac_pubs/3729