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- Title
Controllable Fast and Slow Light in Photonic-Molecule Optomechanics with Phonon Pump.
- Authors
Chen, Huajun
- Abstract
We theoretically investigate the optical output fields of a photonic-molecule optomechanical system in an optomechanically induced transparency (OMIT) regime, in which the optomechanical cavity is optically driven by a strong pump laser field and a weak probe laser field and the mechanical mode is driven by weak coherent phonon driving. The numerical simulations indicate that when the driven frequency of the phonon pump equals the frequency difference of the two laser fields, we show an enhancement OMIT where the probe transmission can exceed unity via controlling the driving amplitude and pump phase of the phonon driving. In addition, the phase dispersion of the transmitted probe field can be modified for different parametric regimes, which leads to a tunable delayed probe light transmission. We further study the group delay of the output probe field with numerical simulations, which can reach a tunable conversion from slow to fast light with the manipulation of the pump laser power, the ratio parameter of the two cavities, and the driving amplitude and phase of the weak phonon pump.
- Subjects
PHONONS; OPTOMECHANICS; LIGHT transmission; LASER pumping; COHERENCE (Physics); COMPUTER simulation; LATTICE dynamics
- Publication
Micromachines, 2021, Vol 12, Issue 9, p1074
- ISSN
2072-666X
- Publication type
Article
- DOI
10.3390/mi12091074