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We report on the synchronization of thermal-carrier self-sustaining oscillations in coupled silicon microdisks. Time and frequency domain signatures of synchronization are observed.
We demonstrate self-sustained mechanical oscillations at room temperature and ambient pressure in a silicon photonic crystal slot-cavity fabricated by a CMOS-Foundry. Optical quality factor as high as Qopt = 4 × 105 and an optomechanical coupling rate of g0/2π = 76 kHz are observed.
We demonstrate an optomechanical resonator that can tightly confine phonons through a circular phononic shield. Our design allows for independently trimmable long living optical and mechanical modes with large optomechanical coupling.
We show that Coupled Mode Theory incorrectly predicts a dark state for a coupled resonator design and we propose a correction that effectively reconciles it with results obtained experimentally and through the Transfer Matrix Method.
We used destructive interference of elastic waves to obtain material limited high quality factor micro mechanical devices probed with an optical cavity. Mechanical quality factors as high as 28×103 were measured.
We demonstrate the generation and control of optical resonance mode-splitting arising from a single-notch resonance using coupled silicon microring resonators with electrically controlled counter-propagating mode excitation.
Here we numerically investigate Brillouin scattering (BS) in a silicon slot waveguide. We show that BS is strongly influenced by the boundary effects, instead of the usual photo-elastic effect leading to the interaction with distinct mechanical modes.
We demonstrate four-channel all-optical wavelength multicasting using only 1 mW of pump power and channel spacing of 40–60 GHz. Our device is based on a compact embedded microring design fabricated on a scalable SOI platform.
We couple a single suspended carbon nanotube to the near field of a free standing optical microdisk. The strong interaction between the nanotube and the microcavity produces an ultrahigh photocurrent response as large as 0.35mA/W.
We demonstrate fourfold quality factor (Q) enhancement with microring resonators internally coupled to larger microring resonator. Q ∼ 37,000 is obtained for a 5 μm radius microring in a 40 μm × 40 μm footprint device.
We theoretically and experimentally demonstrate that the support loss of double-disk optomechanical resonators can be minimized using destructive elastic wave interference. We show 100MHz Si3N4 resonators with mechanical quality factor of 104 at room temperature.
We demonstrate the ability to tailor the resonance dependence on input power in silicon microring resonators using a passive technique by utilizing two counteracting processes, free carrier dispersion blueshift and thermo-optic redshift. In our fabricated silicon microring resonators, we achieve an effective blueshift, as well as effective redshift. We also design and fabricate a power insenstive...
We demonstrate experimentally the synchronization of two micromechanical oscillators actuated by the optical radiation field. The mutual coupling is purely optical and fully tunable. Upon synchronization, the phase noise drops in agreement with the prediction.
We show evidence of extreme tuning of micro-photonic resonances (31.4 nm) using optical gradient forces. We estimate the static mechanical displacements to be as large as 60 nm using mW level optical powers.
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