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It is well known that the eigen frequency (f) of a harmonic oscillator is determined by the oscillator effective mass (meff) and spring constant (keff) according to the Hook's law equation. An optical whispering gallery microcavity, when the wavelength of the injected light coincides the cavity resonance, establishes tremendous amount of light circulating along its equator. For an ultra-high quality...
For the first time, we present a detailed analysis of the noise characteristics in micro-/nano-optomechanical resonators for inertial sensing including optomechanical-based accelerometers and gyroscopes, which provides useful guidance for developing high performance chip-scale integrated optomechanical inertial sensors in the future.
We propose to produce five-partite entanglement via cascaded four-wave mixing in a high-Q microresonator that may become a key to future one-way quantum computation on chip.
We demonstrate photonic-crystal nanobeam cavities in amorphous SiC. The fundamental mode exhibits intrinsic-Q of 7.69×104 with mode volume of 0.60(λ/n)3. This is, to the best of our knowledge, the highest Q/V value in SiC cavities.
We report ultra-pure single-mode photon generation through four-wave mixing in high-Q silicon microdisks. The cross correlation of photon pairs peaks over 25,000 and the self correlations of both photon modes peak around 1.8.
We report the first demonstration of high-quality (Qi ∼ 2.8−3.2×103)3C silicon carbide photonic crystal nanobeams. With the strong optomechanical coupling (gOM/2π ∼ 100 GHz/nm), we observed clear optical transduction of the thermal mechanical motion of the coupled nanobeams.
We observed optomechanical oscillations at 384-kHz by immersing a silica microsphere in an aqueous environment. Despite of high dissipation, the device displays a laser threshold power of 0.98-mW and a mechanical Q of 1,648.
We show a significant self-frequency shift of ultrafast cavity solitons associated with Kerr frequency combs in a dispersion-flattened nonlinear cavity. Dispersion induces a frequency shift up to 20% of the pump frequency.
We demonstrate a novel approach for trapping mechanical motion and elastic tuning of mechanical rigidity while preserving phonon number, through a giant quadratic optomechanical coupling created from a tunable coupled microdisk resonator.
The coupling of mechanical oscillators and optical cavity modes through scattering forces has received considerable attention in recent years. This interaction provides a way, through the principle of dynamic back action, to amplify and cool mechanical motion . It could also soon provide a practical means to entangle macroscopic mechanical motion with a variety of other quantum systems, including...
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