H
Hisashi Sumikura
Researcher at Nippon Telegraph and Telephone
Publications - 71
Citations - 1568
Hisashi Sumikura is an academic researcher from Nippon Telegraph and Telephone. The author has contributed to research in topics: Photonic crystal & Terahertz radiation. The author has an hindex of 15, co-authored 67 publications receiving 1219 citations. Previous affiliations of Hisashi Sumikura include RWTH Aachen University & Osaka University.
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Journal ArticleDOI
Large-scale integration of wavelength-addressable all-optical memories on a photonic crystal chip
Eiichi Kuramochi,Kengo Nozaki,Akihiko Shinya,Koji Takeda,Tomonari Sato,Shinji Matsuo,Hideaki Taniyama,Hisashi Sumikura,Masaya Notomi +8 more
TL;DR: In this article, a large-scale densely integrated optical memory on a single photonic crystal chip is demonstrated, where the wavelength division multiplexing (WDM) capabilities of nanophotonic memories are exploited for optical addressing.
Journal ArticleDOI
Ultrafast and energy-efficient all-optical switching with graphene-loaded deep-subwavelength plasmonic waveguides
Masaaki Ono,Masanori Hata,Masanori Hata,Masato Tsunekawa,Masato Tsunekawa,Kengo Nozaki,Hisashi Sumikura,Hisashi Chiba,Hisashi Chiba,Masaya Notomi,Masaya Notomi +10 more
TL;DR: In this article, the authors proposed the use of graphene-loaded deep-subwavelength plasmonic waveguides to achieve ultrafast all-optical switching with a switching energy of 35'fJ and a switching time of 260'fs.
Journal ArticleDOI
Fast Purcell-enhanced single photon source in 1,550-nm telecom band from a resonant quantum dot-cavity coupling
Muhammad Danang Birowosuto,Hisashi Sumikura,Shinji Matsuo,Hideaki Taniyama,Peter J. van Veldhoven,R Richard Nötzel,R Richard Nötzel,Masaya Notomi +7 more
TL;DR: This coupled quantum dot cavity system in the telecom band provides a bright high-bit-rate non-classical single photon source that offers appealing novel opportunities for the development of a long-haul quantum telecommunication system via optical fibres.
Journal ArticleDOI
Fast Purcell-enhanced single photon source in 1,550-nm telecom band from a resonant quantum dot-cavity coupling
Muhammad Danang Birowosuto,Hisashi Sumikura,Shinji Matsuo,Hideaki Taniyama,P.J. van Veldhoven,R Richard Nötzel,Masaya Notomi +6 more
TL;DR: In this article, a very fast single photon source in the 1,550-nm telecom band was achieved by a large Purcell enhancement that results from the coupling of a single InAs quantum dot and an InP photonic crystal nanocavity.
Journal ArticleDOI
Ultrafast and energy-efficient all-optical switching with graphene-loaded deep-subwavelength plasmonic waveguides
Masaaki Ono,Masanori Hata,Masanori Hata,Masato Tsunekawa,Masato Tsunekawa,Kengo Nozaki,Hisashi Sumikura,Hisashi Chiba,Hisashi Chiba,Masaya Notomi,Masaya Notomi +10 more
TL;DR: In this paper, the authors proposed a graphene-loaded deep-subwavelength plasmonic waveguides (30 nm x 20 nm), which achieved ultrafast all-optical switching with a switching energy of 35 fJ and a switching time of 260 fs.