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Quantum teleportation [1] is a cornerstone of quantum information science due to its essential role in several important tasks such as the long-distance transmission of quantum information using quantum repeaters [2–4]. In this context, a challenge of paramount importance is the distribution of entanglement between remote nodes, and to use this entanglement as a resource for long-distance light-to-matter...
Challenges for building a quantum repeater system using a nitrogen vacancy center in diamond are overviewed and the futures are discussed. Our approach for further development of quantum repeater network is also presented with experimental demonstrations of quantum entanglement detection between a photon and an electron spin in an NV center for quantum entanglement swapping.
We investigate and optimize three generations of quantum repeater protocols for long distance quantum communication, which can overcome the major challenges of photon loss and operational imperfections.
Entanglement plays a central role in fundamental tests of quantum mechanics as well as in the burgeoning field of quantum information processing. Particularly in the context of quantum networks and communication, an outstanding challenge is the efficient generation of entanglement between stationary (spin) and flying (photon) qubits. In this talk, I will first show the observation of quantum entanglement...
We review the recent progress on the first experimental demonstration of photonic topological insulators, along with a variety of new ideas associated with it.
Plasmonic assisted nanodetectors and LEDs may be the only solution for power efficient onchip optical communications - the holy grail of integrated photonics. Localized plasmons in novel detectors and fast LEDs will be described in detail.
Trapped ions are a key experimental platform for quantum computing, while photons transport information over long distances. Optical cavities provide a coherent link between these two systems, as demonstrated by recent experiments with calcium ions.
This tutorial reviews recent advances in the fundamental understanding and active control of quantum fluids of light in nonlinear optical media. Perspectives in the direction of strongly correlated photon systems are outlined.
Single organic molecules allow for the generation of high-flux single photons. At cryogenic conditions, these photons can be as narrow as a few MHz. It is possible to find suitable molecules matching to a variety of atomic transitions, allowing for quantum hybrid systems of atoms and molecules.
Newly discovered 2D semiconductors offer a platform to investigate valley excitons at the two dimensional limit. Here, we present optoelectronic control of valley exciton polarization and coherence, and their device applications in monolayer limit.
We demonstrate stimulated polariton emission at room temperature in a dielectric microcavity embedded with ZnO nanoparticles. The polariton lifetime is also shown to decrease drastically above the stimulated emission threshold.
We observe an effective magnetic field for photons using an on-chip silicon-based Ramsey-type interferometer. This interferometer generates a direction-dependent phase which corresponds to a magnetic field of 0.2 Gauss in an Aharonov-Bohm configuration for electrons.
The scintillation yield of rare-earth doped LaF3 nanoparticles (NPs) was experimentally measured. Taken together with evidence of FRET between NPs and covalently bound photosensitizer molecules, this suggests a route to combine radiation and photodynamic therapy.
We experimentally demonstrate spectral broadening and shaping of weak mono-exponentially decaying pulses via nonlinear mixing and phase modulation. This method is compatible with single photons wavepackets generated by quantum emitters.
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.
We report photonic radio-frequency arbitrary waveform generation in the W-band, enabled through optical pulse shaping and a near-ballistic uni-traveling-carrier photodiode. Example waveforms spanning 75–110GHz with long time apertures are generated and measured after wireless propagation.
We report a technique to simultaneously optimize the peak rejection and the resolution of a radiofrequency photonic notch filter based on a silicon nitride ring resonator.
We present the first experimental realization of optical supersymmetry and demonstrate mode conversion and global phase-matching between SUSY partner structures. Our results may pave the way for compact and highly efficient integrated mode-division-multiplexing schemes.
We demonstrate a 2D grating emitter that emits circularly polarized light beam synthesized from a waveguide mode. A micro-heater is integrated to control handedness of the circularly polarized light. The device shows emission efficiency of about 8%, while simulations predict much higher efficiency of 72% with ideal conditions. Such a device could serve as an interface between silicon photonic waveguides...
We identify a hybrid plasmonic slot waveguide capable of millimetre range transport and deep subwavelength nanofocusing by varying slot width. Convenient integration with the SOI platform provides an important bridge between plasmonics and silicon photonics.
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