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This tutorial provides an introduction to the current state-of-the-art, the challenges and the prospects of achieving quantum optical control over nano-, micro- and macro-mechanical devices, i.e. quantum optomechanics.
Repeatability of resonance detection for on-chip microring resonators is systematically studied. An efficient interferometric method is presented to improve the accuracy by more than one order of magnitude in an 8 nm bandwidth, without any temperature control.
We experimentally demonstrate avalanche sub bandgap detection of light at 1550 nm wavelength via surface states using the configuration of interleaved PN junctions along a silicon waveguide. The device operates in a fully depleted mode.
Monolayer graphene sheet has been integrated on top of small disk optical resonator in SOI platform. Electro-optic interaction between graphene and whispering gallery mode of the cavity has been demonstrated and studied for modulation application.
On-chip electrical modulation of relative phase between pairs of optical vortices with opposite signs has been demonstrated, enabling useful functions in lab-on-chip, communications and sensing applications.
A novel ultra-broad bandwidth ultrasound detector is demonstrated using imprinted polymer microring, with flat frequency response up to ∼350 MHz at −3dB. A record high sub-3µm axial resolution in ultrasound/photoacoustic imaging applications is demonstrated.
Opto-mechanically controlled liquid crystalline elastomer (LCE) integrated tunable polymeric microgoblet lasers are fabricated on a silicon chip. Symmetrical deformation of uniaxially aligned LCE microcylinders enables expansion of the microgoblet resonators for tuning the lasing modes.
A novel athermal scheme based on resonance splitting of dual-ring structure is proposed and proved. An athermal resonator based on this scheme is demonstrated, achieving athermal transmission over a temperature range of at least 40K.
Experimental studies on the chemical detection sensitivity of high surface area photonic crystal microring resonators are presented. We report a detection sensitivity of ∼170nm/RIU for slow-light resonance modes close to the band edge.
We designed and fabricated silicon nitride micordisk-waveguide vertical coupling devices processed at a low temperature of 270°. We experimentally demonstrate an intrinsic quality factor of 7.2×104 in the disk with only 15µm radius operating near 1310nm.
We observe experimentally a transition of quality factor scaling from third power to fifth power of the number of periods in periodic silicon optical waveguides designed to exhibit a degenerate band edge.
We present the design and realization of strong light-matter coupling in monolithic metamaterial nanocavities. We achieve a Rabi frequency of 2.5 THz (corresponding to a polariton splitting of 20%) in a mode volume of 1.34×10−3(λ/n)3.
We demonstrate cavity-enhanced HHG with a tailored transverse mode simultaneously allowing for efficient conversion to the XUV and for unparalleled output coupling efficiencies. Due to its purely geometric nature, this method is power scalable.
Non-perturbative on-chip light observation is achieved in silicon photonics waveguides by a novel integrated photonic probe. Light intensity monitoring is performed over 40 dB dynamic range, −30 dBm sensitivity, and microsecond scale time response.
To demonstrate control over the quantum spectrum of light, we tune the joint spectral intensity of photon pairs generated at telecommunications wavelengths using a low-power diode-pumped compact CMOS-compatible silicon chip at room temperature.
We propose a coupled-resonator-optical-waveguide-based sensor with multi-pixel detection using all-silicon sub-bandgap photodetectors at 1550 nm. Our proof-of-concept experiments of a PIN-diode-integrated three-microring CROW demonstrate sensing a minimum effective refractive index change of 2×10−5.
The nanoscale radius variation of a bottle microresonator with the required dispersion characteristics is determined theoretically. Experimentally, a microresonator with the footprint 0.08 mm2 exhibiting 20 ns/nm dispersion compensation of 100 ps pulses is demonstrated.
This paper discusses on-chip optical isolators with bismuth-iron-garnet (BIG) overcladding on a ring resonator for photonic integrated circuit applications. Characterization of BIG prepared by RF magnetron sputtering and pulsed laser deposition methods are also discussed.
We present on-chip Si3N4 optomechanical transducers that integrate nanomechanical tuning forks with microdisk resonators for displacement measurements. Enhanced mechanical Q relative to single cantilevers and mechanical frequency adjustment by beam stress engineering were realized.
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