Phononic Frequency Comb via Intrinsic Three-Wave Mixing
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Authors
Ganesan, Adarsh
Do, Cuong
Seshia, Ashwin A
Publication Date
2017-01-20Journal Title
Physical Review Letters
ISSN
1079-7114
Publisher
American Physical Society
Volume
118
Number
033903
Type
Article
This Version
NA
Metadata
Show full item recordCitation
Ganesan, A., Do, C., & Seshia, A. A. (2017). Phononic Frequency Comb via Intrinsic Three-Wave Mixing. Physical Review Letters, 118 (033903) https://doi.org/10.1103/PhysRevLett.118.033903
Abstract
Optical frequency combs [1-8] have resulted in significant advances in
optical frequency metrology and found wide application to precise physical
measurements [1-4, 9] and molecular fingerprinting [8]. A direct analogue of
frequency combs in the phononic or acoustic domain has not been reported to
date. In this letter, we report the first clear experimental evidence for a
phononic frequency comb. In contrast to the Kerr nonlinearity [10] in optical
frequency comb formation, the phononic frequency comb is generated through the
intrinsic coupling of a driven phonon mode with an auto-parametrically excited
sub-harmonic mode [16]. Through systematic experiments at different drive
frequencies and amplitudes, we portray the well-connected process of phononic
frequency comb formation and define attributes to control the features [17-18]
associated with comb formation in such a system. Further, the interplay between
these nonlinear resonances and the well-known Duffing phenomenon [12-14] is
also observed. The presented pathway for phononic frequency comb formation
finds general relevance to other nonlinear systems in both classical and
quantum domains.
Keywords
nlin.PS, nlin.PS, physics.class-ph
Identifiers
External DOI: https://doi.org/10.1103/PhysRevLett.118.033903
This record's URL: https://www.repository.cam.ac.uk/handle/1810/288223
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