Coherently slowing light with a coupled optomechanical crystal array
1 Center for Quantum Science and Engineering, Jiangxi Normal University - Nanchang, 330022, China
2 Center for Engineered Quantum System, School of Mathematics and Physics, University of Queensland St Lucia, 4072, Qld, Australia
Received: 4 June 2012
Accepted: 30 July 2012
We study the propagation of light in a resonator optical waveguide consisting in an evanescently coupled optomechanical crystal array. In the strong-driving limit, the Hamiltonian of the system can be linearized and diagonalized. In this case we obtain the polaritons, which are formed by the interaction of photons and the collective excitation of mechanical resonators. By analyzing the dispersion relations of polaritons, we find that the band structure can be controlled by changing the related parameters. It has been suggested that an engineerable band structure can be used to slow and stop light pulses.
PACS: 42.50.Nn – Quantum optical phenomena in absorbing, amplifying, dispersive and conducting media; cooperative phenomena in quantum optical systems / 42.50.Ex – Optical implementations of quantum information processing and transfer / 42.50.Wk – Mechanical effects of light on material media, microstructures and particles
© EPLA, 2012