Cavity optomechanics with a laser-engineered optical trap

SESIN, P.; LEMAÎTRE, A.; ANGUIANO, S.; FAINSTEIN, A.; BRUCHHAUSEN, A.E.

Physical Review B

American Physical Society

Lugar: Nueva York; Año: 2021 vol. 103

2469-9950

Laser-engineered exciton-polariton networks could lead to dynamically configurable integrated optical circuitry and quantum devices. Combining cavity optomechanics with electrodynamics in laser-configurable hybrid designs constitutes a platform for the vibrational control, conversion, and transport of signals. With this aim we investigate three-dimensional optical traps laser induced in quantum well embedded semiconductor planar microcavities. We show that the laser-generated and -controlled discrete states of the traps dramatically modify the interaction between photons and phonons confined in the resonators, accessing through coupling of photoelastic origin (g0/2π∼1.8MHz) an optomechanical cooperativity C>1 for milliwatt excitation. The quenching of Stokes processes and double-resonant enhancement of anti-Stokes ones involving pairs of discrete optical states in the sideband-resolved regime allow the optomechanical cooling of 180-GHz bulk acoustic waves, starting from room temperature down to ∼130 K. These results pave the way for dynamical tailoring of optomechanical actuation in the extremely high frequency range (30-300 GHz) for future network and quantum technologies.