Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Fumiya, Sekiguchi"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract The critical current in a superconductor (SC) determines the performance of many SC devices, including SC diodes which have attracted recent attention. Hitherto, studies of SC diodes are limited in the DC-field measurements, and their perfor
Externí odkaz:
https://doaj.org/article/1de0daacd46d4e3889cc418bab5e8afb
Autor:
Zhenya Zhang, Fumiya Sekiguchi, Takahiro Moriyama, Shunsuke C. Furuya, Masahiro Sato, Takuya Satoh, Yu Mukai, Koichiro Tanaka, Takafumi Yamamoto, Hiroshi Kageyama, Yoshihiko Kanemitsu, Hideki Hirori
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-7 (2023)
The authors studied HoFeO3 crystal using multicycle THz magnetic pulses enhanced strongly by spiral-shaped microstructure. The observed Faraday ellipticity demonstrates second- and third-order harmonics of the magnetization oscillation and an asymmet
Externí odkaz:
https://doaj.org/article/9afce982e8b64b9c8b22544bc29a72a2
Autor:
Fumiya Sekiguchi, Kestutis Budzinauskas, Prashant Padmanabhan, Rolf B. Versteeg, Vladimir Tsurkan, István Kézsmárki, Francesco Foggetti, Sergey Artyukhin, Paul H. M. van Loosdrecht
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Skyrmions are a topological magnetic texture that have garnered considerable interest for various technological applications. Here, Sekiguchi et al. investigate the ultrafast optical response of GaV4S6, and find a significant reduction in the thermal
Externí odkaz:
https://doaj.org/article/5fed9190a3bc4d2b84ae9a8cbf35d83c
Autor:
Go Yumoto, Hideki Hirori, Fumiya Sekiguchi, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Here, Yumoto et al. demonstrate that for a halide perovskite with large spin-orbit splitting the optical Stark effect can give way to a three level Autler-Townes effect in the near-infrared region. The multiband nature of the effect potentially allow
Externí odkaz:
https://doaj.org/article/5b9d8925cf1a4928b8ccb18e4ce8119f
Autor:
Zhenya Zhang, Hideki Hirori, Fumiya Sekiguchi, Ai Shimazaki, Yasuko Iwasaki, Tomoya Nakamura, Atsushi Wakamiya, Yoshihiko Kanemitsu
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032021 (2021)
Ultrastrong coupling (USC) between phonons and vacuum photons can result in fascinating quantum phenomena, though it is difficult to achieve due to the small dipole moments of phonons in solids. Here, we investigate the vacuum Rabi splitting by coupl
Externí odkaz:
https://doaj.org/article/c0896be17a364ca5b042c7475723c621
Autor:
Kotaro Nakagawa, Hideki Hirori, Shunsuke A. Sato, Hirokazu Tahara, Fumiya Sekiguchi, Go Yumoto, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu
Publikováno v:
Nature Physics
Since the discovery of high-order harmonic generation (HHG) in solids, much effort has been devoted to understand its generation mechanism and both inter- and intraband transitions are known to be essential. However, intraband transitions are affecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46ec7ad1203e22c20391b66831db4554
http://arxiv.org/abs/2212.11483
http://arxiv.org/abs/2212.11483
Publikováno v:
Physical Review B. 106(24)
We investigate the characteristics of high harmonics (HHs) unique to the nonperturbative nonlinear regime. We show that the polarization state of HHs generated from GaAs changes drastically across the crossover from the weak-field perturbative regime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0912036ca9b95aae12fc0c24c9295d2e
http://hdl.handle.net/2433/278692
http://hdl.handle.net/2433/278692
Autor:
Yasuyuki, Sanari, Fumiya, Sekiguchi, Kotaro, Nakagawa, Nobuhisa, Ishii, Yoshihiko, Kanemitsu, Hideki, Hirori
Publikováno v:
Optics Letters. 46(20):5280-5283
We demonstrate a compact and tunable mid-infrared light source that provides carrier-envelope-phase (CEP)-locked pulses at repetition rates from 500 Hz to 10 kHz. The seed pulses were generated by intra-pulse difference frequency mixing of the output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::ccf6b36ba1fb466d53b6899f8fcb3862
https://repo.qst.go.jp/records/84424
https://repo.qst.go.jp/records/84424
Autor:
Go Yumoto, Fumiya Sekiguchi, Ruito Hashimoto, Tomoya Nakamura, Atsushi Wakamiya, Yoshihiko Kanemitsu
Publikováno v:
Science Advances. 8(30)
Monitoring of the spatially resolved exciton spin dynamics in two-dimensional semiconductors has revealed the formation of a spatial pattern and long-range transport of the spin-polarized excitons, which holds promise for exciton-based spin-optoelect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56fbf2d867a3d2d2ae98488c13ea3088
http://hdl.handle.net/2433/275688
http://hdl.handle.net/2433/275688
Autor:
Yoshihiko Kanemitsu, Hideki Hirori, Nobuhisa Ishii, Kotaro Nakagawa, Fumiya Sekiguchi, Yasuyuki Sanari
Publikováno v:
Optics letters. 46(20)
We demonstrate a compact and tunable mid-infrared light source that provides carrier-envelope-phase (CEP)-locked pulses at repetition rates from 500 Hz to 10 kHz. The seed pulses were generated by intra-pulse difference frequency mixing of the output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1e33894aef9b993c987c93515da6948
https://pubmed.ncbi.nlm.nih.gov/34653172
https://pubmed.ncbi.nlm.nih.gov/34653172