Moving boundary and photoelastic coupling in GaAs optomechanical resonators

@article{Balram2014MovingBA,
  title={Moving boundary and photoelastic coupling in GaAs optomechanical resonators},
  author={Krishna C. Balram and Marcelo Davanco and Ju Young Lim and Jin-Dong Song and Kartik Srinivasan},
  journal={arXiv: Optics},
  year={2014}
}
Chip-based cavity optomechanical systems are being considered for applications in sensing, metrology, and quantum information science. Critical to their development is an understanding of how the optical and mechanical modes interact, quantified by the coupling rate $g_{0}$. Here, we develop GaAs optomechanical resonators and investigate the moving dielectric boundary and photoelastic contributions to $g_{0}$. First, we consider coupling between the fundamental radial breathing mechanical mode… 

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References

SHOWING 1-10 OF 37 REFERENCES
Photoelastic coupling in gallium arsenide optomechanical disk resonators.
TLDR
Photoelastic optomechanical coupling is shown to be a predominant coupling mechanism for certain disk dimensions and mechanical modes, leading to total coupling gom and g(0) reaching respectively 3 THz/nm and 4 MHz.
High frequency GaAs nano-optomechanical disk resonator.
TLDR
A GaAs semiconductor optomechanical disk system where both optical and mechanical energy can be confined in a subwavelength scale interaction volume, approaching the quantum limit imprecision is demonstrated.
Optomechanical crystals
TLDR
These planar optomechanical crystals bring the powerful techniques of optics and photonic crystals to bear on phononic crystals, providing exquisitely sensitive (near quantum-limited), optical measurements of mechanical vibrations, while simultaneously providing strong nonlinear interactions for optics in a large and technologically relevant range of frequencies.
Stimulated optomechanical excitation of surface acoustic waves in a microdevice.
TLDR
High-order transverse optical modes are relied on to relax this limitation and report the experimental excitation of mechanical resonances ranging from 49 to 1,400 MHz by using forward Brillouin scattering.
Tailorable stimulated Brillouin scattering in nanoscale silicon waveguides
TLDR
Experiments show that radiation pressures, produced by subwavelength modal confinement, yield enhancement of Brillouin nonlinearity beyond those of material non linearity alone, which paves the way towards the hybridization of silicon photonics, microelectromechanical systems and CMOS signal-processing technologies on chip.
Optimized optomechanical crystal cavity with acoustic radiation shield
We present the design of an optomechanical crystal nanobeam cavity that combines finite-element simulation with numerical optimization, and considers the optomechanical coupling arising from both
Investigation and Application of Microscale Semiconductor Lasers and Cavities
As optical, active, semiconductor devices are miniaturized to the wavelength scale, many applications of cavities, lasers, and detectors become possible. In order to make such devices useful in
Determination of the vacuum optomechanical coupling rate using frequency noise calibration.
TLDR
A straightforward experimental technique is demonstrated and verified to derive the vacuum optomechanical coupling rate g0 analogous to cavity quantum electrodynamics that removes the ambiguity in the frequently quoted coupling parameter defining the frequency shift for a given mechanical displacement, and the effective mass of the mechanical mode.
Strain-mediated coupling in a quantum dot-mechanical oscillator hybrid system.
TLDR
This work presents the experimental realization of a monolithic solid-state hybrid system governed by material strain: a quantum dot is embedded within a nanowire that features discrete mechanical resonances corresponding to flexural vibration modes.
Optical loss and lasing characteristics of high-quality-factor AlGaAs microdisk resonators with embedded quantum dots
Optical characterization of AlGaAs microdisk resonant cavities with a quantum dot active region is presented. Direct passive measurement of the optical loss within AlGaAs microdisk resonant
...
1
2
3
4
...