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We developed an adhesive bonding process to integrate silicon nanomembranes onto silicon chips. A grating-coupled 1-to-32 H-tree optical distribution is experimentally demonstrated with an excess loss of 2.2 dB and a uniformity of 0.72 dB.
We experimentally demonstrate mid-infrared difference frequency generation in suspended 181-nmthick GaAs waveguides. The extreme form-birefringence in the nanoslab waveguide enables phase-matching between the CW signal (1550 nm), pump (1025 nm), and idler (3000 nm).
A novel torsional cavity optomechanical system consisting of a nano-seesaw with one photonic crystal cavity on each side has been demonstrated, which exhibits extremely high mechanical sensitivity and can potentially reveal new optomechanical phenomena.
A Si-integrated modulator based on epitaxial ferroelectric BaTiO3 thin films is demonstrated with gigahertz modulation bandwidth and an effective Pockels coefficient of 213 ± 49 pm/V.
In 2013, Tornado Spectral Systems introduced OCTANE-860, the first chip-based nanophotonic spectrometer for spectral-domain OCT. Technology advantages and challenges have been identified during development and a new strategy for optimizing performance will be discussed.
Femtosecond laser inscription of high performance active/passive waveguides is demonstrated in phosphate glass via local modification of the glass composition. La-K cross diffusion plays a key role in the performance of the generated structures.
We consider simultaneous SPDC and scattering loss in waveguides by coupling waveguide modes to a reservoir. We calculate that a reduction in pair generation efficiency can be accompanied by an increase in heralded photon purity.
We demonstrate a plasmonic latching switch (5 µm long) at 1550 nm with a 6 dB extinction ratio. It exploits the reversible formation of conducting nanofilaments in a plasmonic waveguide. It maintains its state without any power consumption.
A swept-source optical coherence tomography system is realized as a silicon photonic integrated circuit comprising passive components and germanium photo detector. Experiments show uniform sensitivity over 5 mm scanning range, enabling simple imaging demonstrations.
We have produced a stable 10mW, mid-infrared supercontinuum spanning the full functional group band from 1750nm to >7000nm spanning using a 1cm long chalcogenide waveguide pumped by a 20MHz train of 320fs pulses at 4µm.
We introduce the numerical design, analysis and fabrication of a novel nanoplasmonic phased array architecture for superlensing with geometrically controllable depth of focus.
We demonstrate the monolithic integration of an on-demand quantum emitter in the form of a single self-assembled InGaAs quantum dot with an air clad, free standing directional coupler acting as a beam-splitter for anti-bunched light.
We observe directly for the first time optical near field in silicon nanophotonics devices with nanoscale resolution using near field scanning thermal microscopy and demonstrated its advantage over the NSOM technique.
In the presence of gain and loss, supersymmetric transformations facilitate the arbitrary removal of modes from wave-guiding structures. We show how SUSY gives rise to non-PT-symmetric families of complex potentials with entirely real-valued eigenvalue spectra.
We show that coherent light traveling through a 1-D lattice of coupled waveguides with off-diagonal disorder exhibits super-thermal statistics (g(2) > 2) with a photonic thermalization gap at asymptotic propagation distances.
A comparison between light dynamics in Pℐ -symmetric and passive optical coupler is presented. We show that, apart from an overall damping factor, the dymanics in the passive coupler fully reproduce thePℐ -symmetric ones.
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