Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Atsushi Yokoo"'
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:
Kazuteru Usui, Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai, Satoru Karasawa
Publikováno v:
Chemistry – A European Journal. 28
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99f7ca26ab941cc9496a1cb1bf0c05d6
https://doi.org/10.1002/chem.202203411
https://doi.org/10.1002/chem.202203411
Autor:
Kazuteru Usui, Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai, Satoru Karasawa
Publikováno v:
Chemistry – A European Journal. 28
Small chiral organic molecules with CD properties are in high demanded due to their potential use in promising electronic and biological applications. Herein, we reveal a system in which the oxidation of a phosphino group to the corresponding phosphi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91221a5b04872a3722af10c27c21d3b7
https://doi.org/10.1002/chem.202202922
https://doi.org/10.1002/chem.202202922
Autor:
Atsushi Yokoo, Suzuka Chiba, Kazuteru Usui, Hiroki Yasutomi, Go Hirai, Makoto Yoritate, Takahiro Moriyama, Daiki Takeda
Publikováno v:
Organic Letters. 23:1940-1944
C-Glycosides are metabolically stable mimics of natural O-glycosides and are expected to be useful tools for investigation of the biological functions of glycans. Here, we describe the synthesis of a series of aryl and vinyl C-glycosides by stereoinv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::490213910d38f810bda6d57fba19d531
https://doi.org/10.1021/acs.orglett.1c00402
https://doi.org/10.1021/acs.orglett.1c00402
Autor:
Akihiko Shinya, Naotomo Takemura, Sylvain Sergent, Tabijah Wasawo, Kouta Tateno, Masaya Notomi, Atsushi Yokoo, Kengo Nozaki, Satoshi Sasaki, Eiichi Kuramochi, Masato Takiguchi
Publikováno v:
ACS Photonics. 7:1016-1021
We report the successful demonstration of all-optical switching using a sub-wavelength InP/InAsP nanowire integrated in a silicon photonic crystal at telecommunication wavelengths. In this work, we...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa5f772bb1dedf88ed94a7db7f287156
https://doi.org/10.1021/acsphotonics.9b01705
https://doi.org/10.1021/acsphotonics.9b01705
Autor:
Daiki, Takeda, Makoto, Yoritate, Hiroki, Yasutomi, Suzuka, Chiba, Takahiro, Moriyama, Atsushi, Yokoo, Kazuteru, Usui, Go, Hirai
Publikováno v:
Organic letters. 23(5)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cd52ef9ee5b3f593db1920200b559b30
https://pubmed.ncbi.nlm.nih.gov/33625241
https://pubmed.ncbi.nlm.nih.gov/33625241
Autor:
Sylvain Sergent, Tai Tsuchizawa, Atsushi Yokoo, Masaya Notomi, Masato Takiguchi, Hideaki Taniyama, E. Kuramochi
Publikováno v:
ACS Photonics. 4:1040-1047
We report on the fabrication, nanomanipulation, and optical properties of ZnO-nanowire-induced nanocavities in grooved SiN photonic crystals. We show that subwavelength ZnO nanowires supporting intrinsically no Fabry–Perot mode in the violet and ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75e2f21f76e6bf6f827886a625776872
https://doi.org/10.1021/acsphotonics.7b00116
https://doi.org/10.1021/acsphotonics.7b00116
Autor:
Akihiko Shinya, Hideaki Taniyama, Guoqiang Zhang, Muhammad Danang Birowosuto, Kouta Tateno, Masaya Notomi, Atsushi Yokoo, Masato Takiguchi, Eiichi Kuramochi
Publikováno v:
ACS Photonics. 4:355-362
Here we report the successful demonstration of lasing oscillation in a subwavelength semiconductor nanowire (100 nm in diameter) at telecom wavelengths. Although a subwavelength nanowire is too thin to configure an efficient optical cavity by itself,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b23e82514fad3372853fb669343529b1
https://doi.org/10.1021/acsphotonics.6b00830
https://doi.org/10.1021/acsphotonics.6b00830
Autor:
Masaya Notomi, A. Olivier, Atsushi Yokoo, Muhammad Danang Birowosuto, Landobasa Y. M. Tobing, Wang Hong, Eiichi Kuramochi, Masato Takiguchi
Publikováno v:
Optics Communications. 383:555-560
Spontaneous emission of PbS quantum dots (QDs) in different photonic nanostructures has been studied. We use the temperature-dependent exciton photoluminescence and the classic dipole near interface models to understand the spontaneous emission contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3715548c543cad990e8daee350761c9d
https://doi.org/10.1016/j.optcom.2016.09.059
https://doi.org/10.1016/j.optcom.2016.09.059
Autor:
Naotomo Takemura, Kengo Nozaki, Satoshi Sasaki, Akihiko Shinya, T. Wasawo, Kouta Tateno, Masato Takiguchi, Masaya Notomi, Sylvain Sergent, Atsushi Yokoo, E. Kuramochi
Publikováno v:
2019 IEEE Photonics Conference (IPC).
We demonstrated all-optical switching using a hybrid nano-cavity with a single InP/InAsP nanowire and Si photonic crystal. The Q factor is ∼25,000 in 1.3 um and the switching energy is a few hundred fJ. This is smaller than the energy of Si photoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a32ca7a32738cde69f60042349c2db57
https://doi.org/10.1109/ipcon.2019.8908286
https://doi.org/10.1109/ipcon.2019.8908286