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We report the experimental observation of long-sustained GHz electronic oscillations resulting from coupled electron-photon dynamics in ultra-high-Q Si microdisk resonators with CW pumping. Theoretical analysis identifies conditions for steady-state GHz oscillations while suppressing thermal oscillations.
We demonstrate on-chip, large-scale arrays of small high-Q microdisk resonators, suitable for both in-plane coupling and out-of-plane (imaging) spectral analysis devices with high resolution (linewidth < 50 pm to 0.5 nm), and large FSR (> 50 nm).
We report high-quality factor (e.g., more than 6,000) silicon resonators operating at high frequencies (~130 MHz) based on phononic crystals which are a new class of materials with artificially-engineerable phononic (or acoustic) properties. The resonators use the complete acoustic (or phononic) band gap of the designed crystal and are fabricated using a CMOS-compatible micromachining technology....
A method for thermal-stabilization of silicon microdisk resonators, based on thermooptic polymer coatings, is proposed. Two orders of magnitude improvement in thermal stability is expected. Effects on Q and major fabrication challenges are discussed.
A traveling-wave resonator structure with interferometric-coupling scheme is shown to have the capability of supporting both over-coupled and critically-coupled modes, simultaneously. This device is demonstrated in SOI with an integrated microheater to tune its coupling. The application of this device for nonlinear optics is discussed.
We demonstrate sub-wavelength near-field imaging of the optical modes in high Q silicon microdisks. Mode profiles with a spatial resolution of ~20 nm are obtained by characterizing the perturbative effects of a small scanning AFM tip.
We have investigated the effect of small perturbations on the optical modes in a silicon microdisk using a NSOM system. The scattering loss and mode coupling due to NSOM tip and cavity interactions are studied.
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