Search Results - "Notomi, Masaya"

Photonic Topological Insulating Phase Induced Solely by Gain and Loss by Takata, Kenta, Notomi, Masaya

“…We reveal a one-dimensional topological insulating phase induced solely by gain and loss control in non-Hermitian optical lattices. The system comprises units…”
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Topology in momentum space becomes real by Notomi, Masaya

“…Using topological singular points, the topological charge of photonic crystals in momentum space is successfully transferred to optical vortex beams in real…”
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Generation and Annihilation of Topologically Protected Bound States in the Continuum and Circularly Polarized States by Symmetry Breaking by Yoda, Taiki, Notomi, Masaya

“…We demonstrate by breaking the C6 symmetry for higher-order atΓ bound states in the continuum (BICs) with topological charge − 2 in photonic crystals (i)…”
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Femtofarad optoelectronic integration demonstrating energy-saving signal conversion and nonlinear functions by Nozaki, Kengo, Matsuo, Shinji, Fujii, Takuro, Takeda, Koji, Shinya, Akihiko, Kuramochi, Eiichi, Notomi, Masaya

“…The introduction of photonic technologies into mature electronic circuits is in high demand to accelerate on-chip information networking and even computing…”
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Active topological photonics by Ota, Yasutomo, Takata, Kenta, Ozawa, Tomoki, Amo, Alberto, Jia, Zhetao, Kante, Boubacar, Notomi, Masaya, Arakawa, Yasuhiko, Iwamoto, Satoshi

“…Topological photonics emerged as a novel route to engineer the flow of light. Topologically protected photonic edge modes, which are supported at the…”
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Large-scale integration of wavelength-addressable all-optical memories on a photonic crystal chip by Kuramochi, Eiichi, Nozaki, Kengo, Shinya, Akihiko, Takeda, Koji, Sato, Tomonari, Matsuo, Shinji, Taniyama, Hideaki, Sumikura, Hisashi, Notomi, Masaya

“…Photonic integration has long been pursued, but remains immature compared with electronics. Nanophotonics is expected to change this situation. However,…”
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Reconfigurable nanocavity formation in graphene-loaded Si photonic crystal structures by Chiba, Hisashi, Notomi, Masaya

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Ultralow-energy and high-contrast all-optical switch involving Fano resonance based on coupled photonic crystal nanocavities by Nozaki, Kengo, Shinya, Akihiko, Matsuo, Shinji, Sato, Tomonari, Kuramochi, Eiichi, Notomi, Masaya

“…We experimentally and theoretically clarified that a Fano resonant system based on a coupled optical cavity has better performance when used as an all-optical…”
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Emulating the local Kuramoto model with an injection-locked photonic crystal laser array by Takemura, Naotomo, Takata, Kenta, Takiguchi, Masato, Notomi, Masaya

“…The Kuramoto model is a mathematical model for describing the collective synchronization phenomena of coupled oscillators. We theoretically demonstrate that an…”
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Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers by Takeda, Koji, Sato, Tomonari, Shinya, Akihiko, Nozaki, Kengo, Kobayashi, Wataru, Taniyama, Hideaki, Notomi, Masaya, Hasebe, Koichi, Kakitsuka, Takaaki, Matsuo, Shinji

“…A low operating energy is needed for nanocavity lasers designed for on-chip photonic network applications. On-chip nanocavity lasers must be driven by current…”
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Ultralow-power all-optical RAM based on nanocavities by Nozaki, Kengo, Shinya, Akihiko, Matsuo, Shinji, Suzaki, Yasumasa, Segawa, Toru, Sato, Tomonari, Kawaguchi, Yoshihiro, Takahashi, Ryo, Notomi, Masaya

“…Optical random-access memory (o-RAM) has been regarded as one of the most difficult challenges in terms of replacing its various functionalities in electronic…”
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Trapping and delaying photons for one nanosecond in an ultrasmall high- Q photonic-crystal nanocavity by Tanabe, Takasumi, Notomi, Masaya, Kuramochi, Eiichi, Shinya, Akihiko, Taniyama, Hideaki

“…Light is intrinsically very difficult to store in a small space. The ability to trap photons for a long time (photon lifetime, τph) and to slow the propagation…”
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Amplifier-Free Bias-Free Receiver Based on Low-Capacitance Nanophotodetector by Nozaki, Kengo, Matsuo, Shinji, Shinya, Akihiko, Notomi, Masaya

“…The substantial energy dissipation of photoreceivers will obstruct dense photonic-electronic integration in keeping the development of processors and…”
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Mid-Infrared Lasing of Single Wurtzite InAs Nanowire by Sumikura, Hisashi, Zhang, Guoqiang, Takiguchi, Masato, Takemura, Naotomo, Shinya, Akihiko, Gotoh, Hideki, Notomi, Masaya

“…Mid-infrared (MIR) photonics is a developing technology for sensing materials by their characteristic MIR absorptions. Since silicon (Si) is a low-loss…”
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25-channel all-optical gate switches realized by integrating silicon photonic crystal nanocavities by Nozaki, Kengo, Kuramochi, Eiichi, Shinya, Akihiko, Notomi, Masaya

“…Silicon-based photonic crystal nanocavities with different lattice pitches were monolithically integrated with a total length of only 200 μm, and were operated…”
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Movable high-Q nanoresonators realized by semiconductor nanowires on a Si photonic crystal platform by Birowosuto, Muhammad Danang, Yokoo, Atsushi, Zhang, Guoqiang, Tateno, Kouta, Kuramochi, Eiichi, Taniyama, Hideaki, Takiguchi, Masato, Notomi, Masaya

“…Subwavelength semiconductor nanowires have recently attracted interest for photonic applications because they possess various unique optical properties and…”
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Novel frontier of photonics for data processing—Photonic accelerator by Kitayama, Ken-ichi, Notomi, Masaya, Naruse, Makoto, Inoue, Koji, Kawakami, Satoshi, Uchida, Atsushi

“…In the emerging Internet of things cyber-physical system-embedded society, big data analytics needs huge computing capability with better energy efficiency…”
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Toward fJ/bit optical communication in a chip by Notomi, Masaya, Nozaki, Kengo, Shinya, Akihiko, Matsuo, Shinji, Kuramochi, Eiichi

“…This article reviews our recent studies of ultralow-power nanophotonics devices toward implementing a dense optical communication network in a processor chip…”
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Ultrahigh- Q photonic crystal nanocavities realized by the local width modulation of a line defect by Kuramochi, Eiichi, Notomi, Masaya, Mitsugi, Satoshi, Shinya, Akihiko, Tanabe, Takasumi, Watanabe, Toshifumi

“…We propose an ultrahigh quality factor ( Q ) photonic crystal slab nanocavity created by the local width modulation of a line defect. We show numerically that…”
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Far-field optical imaging of topological edge states in zigzag plasmonic chains by Moritake, Yuto, Ono, Masaaki, Notomi, Masaya

“…Topological photonics mimicking topological insulators has recently attracted considerable attention. The Su–Schrieffer–Heeger (SSH) model, which is a…”
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