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Laser cooling of a nanomechanical oscillator into its quantum ground state
The development of a coupled, nanoscale optical and mechanical resonator formed in a silicon microchip, in which radiation pressure from a laser is used to cool the mechanical motion down to its quantum ground state, paving the way for optical control of mesoscale mechanical oscillators in the quantum regime.
Nonlinear optical phenomena in silicon waveguides: modeling and applications.
A unified theoretical platform that not only can be used for understanding the underlying physics but should also provide guidance toward new and useful applications is provided.
Beyond the Rayleigh scattering limit in high-Q silicon microdisks: theory and experiment.
Measurements indicate that optical loss in these high-Q microresonators is limited not by surface roughness, but rather by surface state absorption and bulk free-carrier absorption.
A picogram- and nanometre-scale photonic-crystal optomechanical cavity
Measurements of an optical system consisting of a pair of specially patterned nanoscale beams in which optical and mechanical energies are simultaneously localized to a cubic-micron-scale volume and for which large per-photon optical gradient forces are realized enable the exploration of cavity optomechanical regimes.
Nonlinear response of silicon photonic crystal microresonators excited via an integrated waveguide and fiber taper.
A technique is demonstrated which efficiently transfers light between a tapered standard single-mode optical fiber and a high-Q, ultra-small mode volume, silicon photonic crystal resonant cavity, using this efficient cavity input and output channel to study the steady-state nonlinear absorption and dispersion of the photonics crystal cavity.
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
Electromagnetically induced transparency and slow light with optomechanics
Measurements at room temperature in the analogous regime of electromagnetically induced absorption show the utility of these chip-scale optomechanical systems for optical buffering, amplification, and filtering of microwave-over-optical signals.
Phonon laser action in a tunable, two-level system
A compound optical microcavity system, coupled to a radio-frequency mechanical mode, operating in close analogy to a two-level laser, causing phonon laser action above a pump threshold of 7 µW is demonstrated.
Chemically etched ultrahigh-Q wedge-resonator on a silicon chip
Ultrahigh-Q optical resonators are being studied across a wide range of fields, including quantum information, nonlinear optics, cavity optomechanics and telecommunications. Here, we demonstrate a
Self-induced optical modulation of the transmission through a high-Q silicon microdisk resonator.
Direct time-domain observations are reported of a low-power, self-induced modulation of the transmitted optical power through a high-Q silicon microdisk resonator, attributed to a nonlinear interaction between competing free-carrier and phonon populations within the microdisk.