Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator

Abstract

Optomechanical cavities have proven to be an exceptional tool to explore fundamental and technological aspects of the interaction between mechanical and optical waves. Such interactions strongly benefit from cavities with large optomechanical coupling, high mechanical and optical quality factors, and mechanical frequencies larger than the optical mode linewidth, the so called resolved sideband limit. Here we demonstrate a novel optomechanical cavity based on a disk with a radial mechanical bandgap. This design confines light and mechanical waves through distinct physical mechanisms which allows for independent control of the mechanical and optical properties. Our device design is not limited by unique material properties and could be easily adapted to allow large optomechanical coupling and high mechanical quality factors with other promising materials. Finally, our demonstration is based on devices fabricated on a commercial silicon photonics facility, demonstrating that our approach can be easily scalable.

16 pages, 11 figures

References in corpus (8)

• Non-classical correlations between single photons and phonons from a mechanical oscillator
• Coherent optical wavelength conversion via cavity-optomechanics
• Interaction between light and highly confined hypersound in a silicon photonic nanowire
• Optimized optomechanical crystal cavity with acoustic radiation shield
• Ultrasensitive optical magnetometry at the microscale
• Femtogram Doubly Clamped Nanomechanical Resonators Embedded in a High-Q Two-Dimensional Photonic Crystal Nanocavity
• High-Q silicon optomechanical microdisk resonators at gigahertz frequencies
• An integrated low phase noise radiation-pressure-driven optomechanical oscillator chipset

Cited by in corpus (7)

• Controlling phonons and photons at the wavelength-scale: silicon photonics meets silicon phononics
• Diamond Integrated Quantum Photonics: A Review
• Designing of strongly confined short-wave Brillouin phonons in silicon waveguide periodic lattices
• Efficient anchor loss suppression in coupled near-field optomechanical resonators
• High-Frequency GaAs Optomechanical Bullseye Resonator
• Ar/Cl${}_2$ etching of GaAs optomechanical microdisks fabricated with positive electroresist
• Fiber-based angular filtering for high-resolution Brillouin spectroscopy in the 20-300 GHz frequency range