425 citations · 3.2k across the 81 of their papers we have counts for
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Spectral characterization of photon-pair sources via classical sum-frequency generation
Fumihiro Kaneda, Jo Oikawa, Masahiro Yabuno +5
Tailoring spectral properties of photon pairs is of great importance for optical quantum information and measurement applications. High-resolution spectral measurement is a key tec…
Scalable readout interface for superconducting nanowire single-photon detectors using AQFP and RSFQ logic families
Naoki Takeuchi, Fumihiro China, Shigehito Miki +4
We propose a scalable readout interface for superconducting nanowire single-photon detector (SSPD) arrays, which we call the AQFP/RSFQ interface. This interface is composed of adia…
Fabrication of Deep-Sub-Micrometer NbN/AlN/NbN Epitaxial Junctions on a Si Substrate
Wei Qiu, Hirotaka Terai
We have developed a novel fabrication process for ultra-small, full-epitaxial NbN Josephson junctions on a silicon (Si) substrate. A full-epitaxial NbN/AlN/NbN tri-layer was grown…
Nonreciprocal Terahertz Second Harmonic Generation in Superconducting NbN under Supercurrent Injection
Sachiko Nakamura, Kota Katsumi, Hirotaka Terai +1
Giant second-harmonic generation (SHG) in the terahertz (THz) frequency range is observed in a thin film of an s-wave superconductor NbN, where the time-reversal (-) a…
Quantum optical synthesis in 2D time-frequency space
Rui-Bo Jin, Kurumi Tazawa, Naoto Asamura +6
Conventional optical synthesis, the manipulation of the phase and amplitude of spectral components to produce an optical pulse in different temporal modes, is revolutionizing ultra…
Experimental demonstration of a quantum receiver beating the standard quantum limit at the telecom wavelength
Shuro Izumi, Jonas S. Neergaard-Nielsen, Shigehito Miki +2
Discrimination of coherent states beyond the standard quantum limit (SQL) is an important tasknot only for quantum information processing but also for optical coherent communicatio…