Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Ryo Tetsuya"'
2
Step-like beam scanning in a slow-light grating beam scanner for a FMCW LIDAR
Autor: Jun Gondo, Takemasa Tamanuki, Ryo Tetsuya, Mikiya Kamata, Hiroyuki Ito, Toshihiko Baba
Publikováno v: Optics letters. 47(20)
We have developed a nonmechanical beam scanner equipped with a Si photonics slow-light grating toward an on-chip frequency-modulated continuous-wave light detection and ranging (FMCW LIDAR) device. An optical beam is scanned thermo-optically, but it
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dc09f5ce19803ab41ca511ecd22229c
https://pubmed.ncbi.nlm.nih.gov/36240357
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3
Point Cloud Imaging using Si Photonic Crystal Optical Antenna Serial Array
Autor: Ryo Tetsuya, Takemasa Tamanuki, Riku Kubota, Mikiya Kamata, Toshihiko Baba
Publikováno v: 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::720c945ef98cb963e90d8b0c2fe3cc75
https://doi.org/10.23919/oecc/psc53152.2022.9849890
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4
Si PIC Based on Photonic Crystal for LiDAR Applications
Autor: H. Ito, H. Abe, Ryo Shiratori, Takemasa Tamanuki, Toshihiko Baba, Mikiya Kamata, Ryo Tetsuya, Yosuke Hinakura, Ryo Kurahashi, J. Maeda
Publikováno v: OFC
Wide-range nonmechanical beam steering is available by an array of Si photonic crystal slow-light waveguides and their switching without complicated control. FMCW LiDAR action is obtained with this beam steering on a Si photonics chip.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7f986e1e8ff758c6b407093089604e4
https://doi.org/10.1364/ofc.2020.m4h.1
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6
Enhanced light emission from a Si photonics beam steering device consisting of asymmetric photonic crystal waveguide
Autor: Yuma Kusunoki, Ryo Tetsuya, Hiroshi Abe, Hiroyuki Ito, Toshihiko Baba, Daichi Akiyama
Publikováno v: Silicon Photonics XIV.
We have studied a Si photonics non-mechanical beam steering device for LiDARs. We exploit a doubly periodic Si photonic crystal waveguide (PCW) with a collimator lens, which emits a single-peaked optical beam. Thanks to the slow light effect in the P
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15cb1803ea0d286b14867f00b0118556
https://doi.org/10.1117/12.2508297
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7
Efficient light emission and beam forming in Si photonic crystal beam steering device and its phased array configuration
Autor: Yuya Furukado, Ryo Tetsuya, Toshihiko Baba, Goro Takeuchi, Hiroyuki Ito, Hiroshi Abe
Publikováno v: Smart Photonic and Optoelectronic Integrated Circuits XXI.
The optical beam steering device is essential for LiDARs and non-mechanical ones have been developed extensively. We have studied the one based on a Si photonic crystal waveguide (PCW) that guides slow light. In LiDARs, the beam hits a distant object
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f959ca8c2f639e271c21561fd3b9c64c
https://doi.org/10.1117/12.2509224
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8
Wide beam steering by slow-light waveguide gratings and a prism lens
Autor: Ryo Tetsuya, Naoya Kodama, Daichi Akiyama, Toshihiko Baba, Hiroshi Abe, Hiroyuki Ito, Jun Maeda, Yuma Kusunoki
Publikováno v: Optica. 7:47
A lattice-shifted photonic crystal waveguide (LSPCW) maintains slow light as a guided mode and works as an optical antenna when a kind of double periodicity is introduced. Selecting one LSPCW from its array and converting the fan beam to a spot beam
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14d1025cfe81e1516a1ec5625b67eae9
https://doi.org/10.1364/optica.381484
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