H
Hong-Quan Zhao
Researcher at Hokkaido University
Publications - 20
Citations - 492
Hong-Quan Zhao is an academic researcher from Hokkaido University. The author has contributed to research in topics: Fiber & Diamond. The author has an hindex of 9, co-authored 20 publications receiving 468 citations. Previous affiliations of Hong-Quan Zhao include Guangxi University & Osaka University.
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Journal ArticleDOI
Highly efficient coupling of photons from nanoemitters into single-mode optical fibers.
Masazumi Fujiwara,Kiyota Toubaru,Kiyota Toubaru,Tetsuya Noda,Tetsuya Noda,Hong-Quan Zhao,Hong-Quan Zhao,Shigeki Takeuchi,Shigeki Takeuchi +8 more
TL;DR: In this article, the authors demonstrated a high efficient coupling of photons from nanoemitters into single-mode optical fibers using tapered fibers, where a percentage of the total emitted photons from single CdSe/ZnS nanocrystals were coupled into a 300 nm diameter tapered fiber.
Journal ArticleDOI
Highly efficient coupling of photons from nanoemitters into single-mode optical fibers
Masazumi Fujiwara,Kiyota Toubaru,Kiyota Toubaru,Tetsuya Noda,Tetsuya Noda,Hong-Quan Zhao,Hong-Quan Zhao,Shigeki Takeuchi,Shigeki Takeuchi +8 more
TL;DR: Highly efficient coupling of photons from nanoemitters into single-mode optical fibers is demonstrated using tapered fibers and is very promising for nanoparticle sensing and single-photon sources.
Journal ArticleDOI
A nanodiamond-tapered fiber system with high single-mode coupling efficiency
TL;DR: Single nanodiamonds containing nitrogen vacancy defect centers are deposited on a tapered fiber of 273 nanometer in diameter providing a record-high number of 689,000 single photons per second from a defect center in a single-mode fiber.
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Ultrathin fiber-taper coupling with nitrogen vacancy centers in nanodiamonds at cryogenic temperatures.
Masazumi Fujiwara,Hong-Quan Zhao,Tetsuya Noda,Kazuhiro Ikeda,Hitoshi Sumiya,Shigeki Takeuchi +5 more
TL;DR: The present nanofiber/nanodiamond hybrid systems at cryogenic temperatures can be used as NV-based quantum information devices and for highly sensitive nanoscale magnetometry in a cryogenic environment.
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Suppression of fluorescence phonon sideband from nitrogen vacancy centers in diamond nanocrystals by substrate effect
TL;DR: Substrates effect is observed on the suppression of the phonon sideband from nitrogen vacancy (NV) centers in 50nm diamond nanocrystals at cryogenic temperatures and the Debye-Waller factor is estimated from fluorescence spectra on glass, silicon, and silica-on-silicon substrates.