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Introduction
We are doing theroretical and experimental research
in quantum photonic micro/nano-techonology field.
With the increase in complexity
of realizable quantum architectures,the need for stability and high
quality nonclassical interference within large optical circuits has
become a matter of concern in modern quantum optics. Using integrated
waveguide structures, integrated quantum photonic chips show us a
high performance platform from which to further develop quantum
technologies and experimental quantum physics using single photons.
Quantum state preparation, manipulation, and measurement as well as
the first on-chip quantum metrology experiments have been demonstated
based on silica-on-silicon waveguide. We are investigating quantum
information process on photonic integrated circuits(QPICs) based on silica
waveguides and silicon waveguides.
Surface plasmon can confine the electromagnetic energy at a
nanoscale volume far beyond the diffraction limit in the visible and
near infrared spectrum regime, thus can be used in the investigation
of Nanoantenna and Nanoscale waveguide. It can also be exploited for
polarization manipulation in the integrated optical circuits since
the coupling between the light and surface plasmon is dependent on
polarization. Here we focus on the investigations of foundmental quantum
photonic devices based on surface plasmon, including the plasmonic
nanotenna, plasmonic direction coupler, polarizer, polarization beam
splitter, and so on. Using these basic devices, we will assemble the
Mach-Zehnder interferometer and Hong-Ou-Mandel interferometer to
realize the single quantum bit operations and some basic two-photon
quantum controlled logic gates. We are also considering using
plasmonic structures in quantum metrology.
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