Výsledky vyhledávání - "Ryo Tsujimoto"

Design considerations of grating couplers in directionally coupled waveguides

Autor: Ryo Tsujimoto, Junichi Inoue, Shogo Ura

Publikováno v: Applied optics. 59(16)

The far-field pattern of an optical wave radiating from a grating coupler integrated in a directional coupler is discussed based on the coupled mode theory. It is shown that there are two types of intensity distributions with respect to the radiation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::151779e7522506a1818cda62dfb0b300
https://pubmed.ncbi.nlm.nih.gov/32543484

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Trophic Cascade in Seaweed Beds in Sanriku Coast Hit by the Huge Tsunami on 11 March 2011: Sea Urchin Fishery as a Satoumi Activity Serving for Increase in Marine Productivity and Biodiversity

Autor: Masahiro Hamana, Ryo Tsujimoto, Minami Asada, Genki Terauchi, Hiroki Murata, Shuhei Sawayama, Tetsuo Yanagi, Shuji Sasa, Teruhisa Komatsu

Publikováno v: Oceanography Challenges to Future Earth ISBN: 9783030001377

The Great East Japan Earthquake produced a huge tsunami, which struck and changed the coastal ecosystems along the Sanriku Coast in front of the epicenter. It is important to monitor changes in the ecosystems caused by this huge tsunami and their suc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c6ca296b815aa855d24015c2f2f19e8
https://doi.org/10.1007/978-3-030-00138-4_8

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Damage to seagrass and seaweed beds in Matsushima Bay, Japan, caused by the huge tsunami of the Great East Japan Earthquake on 11 March 2011

Autor: Ryo Tsujimoto, Genki Terauchi, Shuji Sasa, Hiroshi Yagi, Hisao Sasaki, Shuhei Sawayama, Teruhisa Komatsu, Shingo Sakamoto

Publikováno v: International Journal of Remote Sensing. 37:5843-5863

Damage to seagrass and seaweed beds caused by the huge tsunami of the Great East Japan Earthquake on 11 March 2011 was investigated in Matsushima Bay, Miyagi Prefecture, Japan, by comparing satellite images taken before the tsunami in November 2009 a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40d8ee9520350409deee5080106f9af6
https://doi.org/10.1080/01431161.2016.1249300

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Output position variation in grating coupler integrated in waveguide resonator

Autor: Shogo Ura, Kenji Kintaka, Junichi Inoue, Ryo Tsujimoto, Kazuki Mori

Publikováno v: 2017 22nd Microoptics Conference (MOC).

Grating coupler (GC) in waveguide cavity resonator can provide high-efficiency vertical coupling with small aperture. Coupling efficiency of GC depends on waveguide resonator shift. Output position variation is theoretically predicted and experimenta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abbe5f50cacd7ae26183bf79a621f66d
https://doi.org/10.23919/moc.2017.8244614

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Position Dependence of Coupling Efficiency of Grating Coupler in Waveguide Cavity

Autor: Shogo Ura, Kazuki Mori, Kenji Kintaka, Junichi Inoue, Ryo Tsujimoto

Publikováno v: 2017 IEEE 67th Electronic Components and Technology Conference (ECTC).

A grating coupler (GC) in a thin film waveguide is an integrated-optic component for coupling a guided wave to/from a free-space wave via the waveguide surface. A GC in a waveguide cavity resonator can provide high-efficiency vertical coupling with s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc8d292357a8cb2d7cc6a944ffab20a9
https://doi.org/10.1109/ectc.2017.60

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Preliminary assessment of eutrophication by remotely sensed chlorophyll-a in Toyama Bay, the Sea of Japan

Autor: Hideaki Nakata, Joji Ishizaka, Ryo Tsujimoto, Genki Terauchi

Publikováno v: Journal of Oceanography. 70:175-184

Time series of the chlorophyll-a concentration (Chl-a) observed by ocean color satellites from 1998 to 2009 were used to assess eutrophication in Toyama Bay, the Sea of Japan. An overall mean of Chl-a during the 12-year period was used to divide the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::172352ce194be6ddf74f78b066d795f8
https://doi.org/10.1007/s10872-014-0222-z

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Growth of the juvenile red snow crab Chionoecetes japonicus in Toyama Bay estimated from carapace width frequency distribution

Autor: Tsuneo Maeda, Ryo Tsujimoto

Publikováno v: NIPPON SUISAN GAKKAISHI. 74:592-597

2000～2006 年の富山湾中央部（水深約 1,000～1,250 m）において，ソリネットを用いて採集されたベニズワイの甲幅組成（甲幅約 5～40 mm）から，6 つの齢群の甲幅平均値（雄:6.4, 9.2, 13.3, 18.0, 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d9d21bedf6a64f4045ead42690c3ba3
https://doi.org/10.2331/suisan.74.592

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