Open AccessPhonon lasing with an atomic thin membrane resonator at room temperature
Author(s) -
Weijie Li,
Zhichao Cheng,
Lizhi Kang,
Ruiming Zhang,
Boyu Fan,
Qiang Zhou,
You Wang,
HaiZhi Song,
K. Yu. Arutyunov,
Xiaobin Niu,
Guangwei Deng
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.423904
Subject(s) - lasing threshold , graphene , resonator , materials science , laser linewidth , optoelectronics , phonon , optical cavity , silicon , helical resonator , substrate (aquarium) , optics , nanotechnology , condensed matter physics , laser , physics , wavelength , oceanography , geology
Graphene has been considered as one of the best materials to implement mechanical resonators due to their excellent properties such as low mass, high quality factors and tunable resonant frequencies. Here we report the observation of phonon lasing induced by the photonthermal pressure in a few-layer graphene resonator at room temperature, where the graphene resonator and the silicon substrate form an optical cavity. A marked threshold in the oscillation amplitude and a narrowing linewidth of the vibration mode are observed, which confirms a phonon lasing process in the graphene resonator. Our findings will stimulate the studies on phononic phenomena, help to establish new functional devices based on graphene mechanical resonators, and might find potential applications in classical and quantum sensing fields, as well as in information processing.