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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.
A triangular nanobeam architecture for a bulk-diamond quantum photonic networks based on silicon masking and angular etching is proposed and implemented. Cavities with Q>3×103 are demonstrated. S-bent interconnects for realizing a mm-scale network are introduced.
A photonic-crystal nanocavity is induced by a III/V nanowire in a line defect in a Si photonic crystal with several serially-connected lattice constants. The resonant wavelength changes by moving the nanowire along the line defect.
Site-controlled single Ge quantum dot was grown on patterned silicon-on-insulator substrate. The single dot was then precisely embedded into a photonic crystal microcavity. Resonant photoluminescence was observed from the single Ge dot in the cavity.
We demonstrate that the unconventional photon blockade can produce single photons under pulsed excitation at high repetition rates. Our proposal relies on two coupled photonic crystal cavities and on the Kerr nonlinearity of silicon.
An all-silicon passive optical diode based on cascaded photonic crystal L3 cavities is demonstrated. Nonreciprocal transmission ratio of 30.8 dB and insertion loss of 8.3 dB are realized in the device.
1.5µm degenerate-frequency photon pairs are generated in a silicon micro-ring cavity by reverse degenerate spontaneous four wave mixing. Their quantum interferences in Mach-Zehnder interferometers are demonstrated, showing their potential in quantum metrology and quantum information.
We experimentally demonstrate ultra-high quality factors (Q = 1.45×106) in evolutionary optimized 2D L3 photonic crystal nanocavities fabricated in Si slabs. Together with ultra-small effective mode volumes ∼ 0.96(λ/n)3, such a nanocavity offers a new platform in future integrated nanophotonics.
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