We explore Anderson-localized cavity optomechanics in a two-dimensional optomechanical platform: a waveguide etched in a suspended silicon membrane with an air slot. Inherent, unavoidable fabrication imperfections induce sufficient backscattering to realize Anderson-localized optical modes which can be driven to enable phonon lasing via optomechanical back-action. We observe mechanical lasing up to 6.8 GHz that results from confinement of the mechanical mode. The role of disorder in cavity optomechanics has thus far been largely overlooked, though our results indicate that it can have a decisive impact on device functionality and opens perspectives for studies of multiple scattering and Anderson localization of bosonic excitations with parametric coupling to mechanical degrees of freedom.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.