High-Frequency GaAs Optomechanical Bullseye Resonator
arXiv:2008.03429 · doi:10.1063/5.0024511
Abstract
The integration of optomechanics and optoelectronics in a single device opens new possibilities for developing information technologies and exploring fundamental phenomena. Gallium arsenide (GaAs) is a well-known material that can bridge the gap between the functionalities of optomechanical devices and optical gain media. Here, we experimentally demonstrate a high-frequency GaAs optomechanical resonator with a ring-type bullseye geometry that is unprecedented in this platform. We measured mechanical modes up to 3.4 GHz with quality factors of 4000 (at 77 K) and optomechanical coupling rates up to 39 kHz at telecom wavelengths. Moreover, we investigated the material symmetry break due to elastic anisotropy and its impact on the mechanical mode spectrum. Finally, we assessed the temperature dependence of the mechanical losses and demonstrated the efficiency and anisotropy resilience of the bullseye anchor loss suppression, indicating that lower temperature operation may allow mechanical quality factors over . Such characteristics are valuable for active optomechanics, coherent microwave-to-optics conversion via piezo-mechanics and other implementations of high-frequency oscillators in III-V materials.
arXiv comment8 pages, 5 figures
References in corpus (25)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Laser cooling of a nanomechanical oscillator into its quantum ground state
- Coherent optical wavelength conversion via cavity-optomechanics
- Coherent coupling between radio frequency, optical, and acoustic waves in piezo-optomechanical circuits
- Optimized optomechanical crystal cavity with acoustic radiation shield
- Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system
- Microwave-to-optics conversion using a mechanical oscillator in its quantum groundstate
- Determination of the vacuum optomechanical coupling rate using frequency noise calibration
- High frequency GaAs nano-optomechanical disk resonator
- Anharmonic vs. relaxational sound damping in glasses: II. Vitreous silica
- Photoelastic coupling in gallium arsenide optomechanical disk resonators
- Wavelength-sized GaAs optomechanical resonators with GHz frequency
- Quasi-two-dimensional optomechanical crystals with a complete phononic bandgap
- Microwave-to-optical transduction using a mechanical supermode for coupling piezoelectric and optomechanical resonators
- Realizing > 300,000 in diamond microdisks for optomechanics via etch optimization
- Cavity piezomechanical strong coupling and frequency conversion on an aluminum nitride chip
- Cavity optomechanics in gallium phosphide microdisks
- Quasinormal-mode perturbation theory for dissipative and dispersive optomechanics
- Microscopic nanomechanical dissipation in gallium arsenide resonators
- Gallium phosphide as a piezoelectric platform for quantum optomechanics
- High frequency optomechanical disk resonators in III-V ternary semiconductors
- Hybrid confinement of optical and mechanical modes in a bullseye optomechanical resonator
- Active optomechanics through relaxation oscillations
- Dispersion tailoring in wedge microcavities for Kerr comb generation
- Ar/Cl etching of GaAs optomechanical microdisks fabricated with positive electroresist