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We describe an ideal tuneable input-output open quantum system, realizable as either a single qubit or single resonator system, which can perfectly absorb traveling single photon states of arbitrary temporal profiles. That is, the system has a time-dependent coupling parameter to an external field that can be modulated according to the temporal profile of a single photon. We obtain an explicit analytical...
Single-carrier photonic wireless transmission at 31 GHz and 8.0 Gbaud with 64QAM is successfully achieved with error-free operation. A newly developed wide bandwidth high power photodetector and a pre-equalizing subsystem are presented.
Time-resolved photoluminescence spectroscopy of InGaAs strained quantum dot prepared by ultrahigh-rate MBE growth indicated a small distribution of ground states energies and carrier lifetime as long as 0.9 ns at 77 K.
Error-free polarization division multiplexed (PDM) 10-Gbps × 2-PDM transmission over a 3.7-km-long holey fiber in the 1-μm waveband, which are shown to be capable of 8.4-THz bandwidth transmission, is successfully demonstrated for the first time.
A new technique that utilizes a 200 kV transmission electron microscope (TEM) and equipped with a light detection system is recently developed. This TEM cathodoluminescence technique is applied to study light emission in two-dimensional plasmonic nanocrystals. When the electron beam is incident parallel to surfaces of periodic structures, Smith-Purcell radiation is observed along with the surface...
1-mum waveband, 12.5-Gbps transmission over a 1.5-km single-mode holey-fiber is demonstrated with clear eye-openings. A wavelength tunable single-mode selected quantum-dot optical frequency-comb laser is used as the optical-source potentially capable of wavelength division multiplexing (WDM).
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