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20012026
most citedBeating the Standard Quantum Limit with Four Entangled Photons

821 citations · 3.3k across the 49 of their papers we have counts for

collaborators

49 papers

physics.app-ph2026

Infrared photonics for healthcare: A roadmap for proactive and predictive health management

Borislav Hinkov, Johannes Kunsch, Werner Mäntele +82

The field of infrared (IR) photonics is currently undergoing remarkable progress, moving rapidly towards practical sensing applications demanded by medical therapy and diagnostics…

cond-mat.mtrl-sci2021★ 16 cited

The Anomalous Formation of Irradiation Induced Nitrogen-Vacancy Centers in 5-Nanometer-Sized Detonation Nanodiamonds

Frederick T. -K. So, Alexander I. Shames, Daiki Terada +11

Nanodiamonds containing negatively charged nitrogen-vacancy (NV) centers are versatile room-temperature quantum sensors in a growing field of research. Yet, knowledge regarding…

physics.optics2021★ 69 cited

Quantum Fourier-transform infrared spectroscopy in the fingerprint region

Yu Mukai, Ryo Okamoto, Shigeki Takeuchi

Harnessing the quantum interference of photon-pair generation processes, infrared quantum absorption spectroscopy (IRQAS) can extract the infrared optical properties of a sample th…

quant-ph2021★ 25 cited

Frequency correlated photon generation at telecom band using silicon nitride ring cavities

Zhenghao Yin, Kenta Sugiura, Hideaki Takashima +4

Frequency entangled photon sources are in high demand in a variety of optical quantum technologies, including quantum key distribution, cluster state quantum computation and quantu…

quant-ph2019★ 9 cited

Direct optical excitation of an NV center via a nanofiber Bragg-cavity: A theoretical simulation

Toshiyuki Tashima, Hideaki Takashima, Shigeki Takeuchi

Direct optical excitation of a nitrogen-vacancy (NV) center in nanodiamond by light via a nanofiber is of interest for all-fiber-integrated quantum applications. However, the backg…

quant-ph2017★ 2 cited

Serial-parallel conversion for single photons with heralding signals

Takayuki Kiyohara, Ryo Okamoto, Shigeki Takeuchi

We present serial-parallel conversion for a heralded single photon source (heralded SPS). We theoretically show that with the heralding signal, the serial-parallel converter can ro…