Dispersive optomechanics of supercavity modes in high-index disks

Abstract

In this work, we study the dispersive coupling between optical quasi-bound-states in the continuum at telecom wavelengths and GHz-mechanical modes in high-index wavelength-sized disks. We show that such cavities can display values of the optomechanical coupling rate on par with optomechanical crystal cavities ($g_0/2\pi \backsimeq$ 800 kHz). Interestingly, optomechanical coupling of optical resonances with mechanical modes at frequencies well above 10 GHz seems attainable. We also show that mechanical leakage in the substrate can be extremely reduced by placing the disk over a thin silica pedestal. Our results suggest a new route for ultra compact optomechanical cavities which can potentially be arranged in massive arrays forming optomechanical metasurfaces.

References in corpus (19)

• Cavity Optomechanics
• Laser cooling of a nanomechanical oscillator into its quantum ground state
• Strong dispersive coupling of a high finesse cavity to a micromechanical membrane
• Optomechanical Crystals
• Individual nanoantennas empowered by bound states in the continuum for nonlinear photonics
• Quantum-coherent coupling of a mechanical oscillator to an optical cavity mode
• High-Q supercavity modes in subwavelength dielectric resonators
• Interaction between light and highly confined hypersound in a silicon photonic nanowire
• Optimized optomechanical crystal cavity with acoustic radiation shield
• Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics
• A 1D Optomechanical crystal with a complete phononic band gap
• High frequency nano-optomechanical disk resonators in liquids
• Two-Dimensional Optomechanical Crystal Cavity with High Quantum Cooperativity
• Photoelastic coupling in gallium arsenide optomechanical disk resonators
• Synchronization of optomechanical cavities by mechanical interaction
• Shape deformation of nanoresonator: a quasinormal-mode perturbation theory
• Microwave generation and frequency comb in a silicon optomechanical cavity with a full phononic bandgap
• Enhanced photon-phonon coupling via dimerization in one-dimensional optomechanical crystals
• High frequency mechanical excitation of a silicon nanostring with piezoelectric aluminum nitride layers

Cited by in corpus (1)

• Applications of Bound States in the Continuum in Photonics