Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Akihiko Shinya"'
Publikováno v:
APL Materials, Vol 8, Iss 3, Pp 031113-031113-7 (2020)
Nitrogen-vacancy (NV) centers in diamond photonic nanostructures have attracted much attention as efficient single photon emitters and quantum bits. These quantum optical devices mostly require single or low-density NV centers doped in thin diamond m
Externí odkaz:
https://doaj.org/article/0e59c997465047dbb133140b0495ea7c
Autor:
Kengo Nozaki, Shinji Matsuo, Takuro Fujii, Koji Takeda, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi
Publikováno v:
APL Photonics, Vol 3, Iss 4, Pp 046101-046101-9 (2018)
Generally, reverse-biased photodetectors (PDs) are used for high-speed optical receivers. The forward voltage region is only utilized in solar-cells, and this photovoltaic operation would not be concurrently obtained with high efficiency and high spe
Externí odkaz:
https://doaj.org/article/36ec0c3485af4adc8b50a927c8382a25
Autor:
Kengo Nozaki, Abdul Shakoor, Shinji Matsuo, Takuro Fujii, Koji Takeda, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi
Publikováno v:
APL Photonics, Vol 2, Iss 5, Pp 056105-056105-11 (2017)
Towards realizing highly integrable low-energy optical modulators, the small device capacitance (C) as well as the low driving voltage (Vpp) is demanded for suppressing the charging energy during the dynamic operation. Although an electro-absorpti
Externí odkaz:
https://doaj.org/article/ade1ba023c9943b884b445cf110b2dd9
Autor:
Masato Takiguchi, Atsushi Yokoo, Kengo Nozaki, Muhammad Danang Birowosuto, Kouta Tateno, Guoqiang Zhang, Eiichi Kuramochi, Akihiko Shinya, Masaya Notomi
Publikováno v:
APL Photonics, Vol 2, Iss 4, Pp 046106-046106-10 (2017)
We demonstrated sub-wavelength (∼111 nm diameter) single nanowire (NW) continuous wave (CW) lasers on silicon photonic crystal in the telecom-band with direct modulation at 10 Gb/s by optical pumping at cryogenic temperatures. To estimate the small
Externí odkaz:
https://doaj.org/article/520504ff990e414a844c1ab84cfd822e
Autor:
Kenta Takata, Kengo Nozaki, Eiichi Kuramochi, Shinji Matsuo, Koji Takeda, Takuro Fujii, Shota Kita, Akihiko Shinya, Masaya Notomi
Publikováno v:
NTT Technical Review. 20:35-41
Publikováno v:
DAC '22: Proceedings of the 59th ACM/IEEE Design Automation Conference. :1285-1290
With the rapid progress of the integrated nanophotonics technology, the optical neural network (ONN) architecture has been widely investigated. Although the ONN inference is fast, conventional densely connected network structures consume large amount
Autor:
Shota Kita, Kohei Ikeda, Kengo Nozaki, Kenta Takata, Kazuo Aoyama, Keijiro Suzuki, Yuriko Maegami, Morifumi Ohno, Guangwei Cong, Noritsugu Yamamoto, Koji Yamamoto, Akihiko Shinya, Hiroshi Sawada, Masaya Notomi
Publikováno v:
AI and Optical Data Sciences IV.
Autor:
Masato Takiguchi, Guoqiang Zhang, Satoshi Sasaki, Kouta Tateno, Caleb John, Masaaki Ono, Hisashi Sumikura, Akihiko Shinya, Masaya Notomi
Publikováno v:
Nanotechnology.
A focused ion beam (FIB) can precisely mill samples and freely form any nanostructure even on surfaces with curvature, like a nanowire surface, which are difficult to implement by using conventional fabrication techniques, e.g. electron beam lithogra
Publikováno v:
NTT Technical Review. :40-46
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :1546-1554