Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Ishii, Nobuhisa"'
Autor:
Tsubouchi, Masaaki, Ishii, Nobuhisa, Kagotani, Yuji, Shimizu, Rumi, Fujita, Takatoshi, Adachi, Motoyasu, Itakura, Ryuji
We perform a beat-frequency-resolved analysis for two-dimensional electronic spectroscopy using a high-speed and stable 2D electronic spectrometer and few-cycle visible laser pulses to disentangle the vibrational coherences in an artificial fluoresce
Externí odkaz:
http://arxiv.org/abs/2211.02220
Publikováno v:
Opt. Lett. 47, 3371 (2022)
Based on the dual-chirped optical parametric amplification and type-I BiB$_3$O$_6$(BiBO) crystals, the generation of $>$100 mJ, 10.4 fs, 10 Hz, carrier-to-envelope phase (CEP)-stable laser pulses, which are centered at 1.7 $\mu$m, is demonstrated; it
Externí odkaz:
http://arxiv.org/abs/2202.03658
Publikováno v:
Optics Express 29(3), 3479-3489 (2021)
We report optical parametric amplification (OPA) of low-frequency infrared pulses in the intermediate region between terahertz (THz) frequency and mid-infrared (MIR), i.e., from 16.9 to 44.8 THz. The 255-fs laser output of the Yb:KGW regenerative amp
Externí odkaz:
http://arxiv.org/abs/2005.03538
Autor:
Xia, Peiyu, Tamaya, Tomohiro, Kim, Changsu, Lu, Faming, Kanai, Teruto, Ishii, Nobuhisa, Itatani, Jiro, Akiyama, Hidefumi, Kato, Takeo
Publikováno v:
Phys. Rev. B 104, 121202 (2021)
We experimentally study the field-intensity dependence of high-harmonic generation in bulk gallium arsenide in reflection geometry. We find the oscillatory behavior at high fields where a perturbative scaling law no longer holds. By constructing a th
Externí odkaz:
http://arxiv.org/abs/2004.04492
Autor:
Suzuki, Takeshi, Someya, Takashi, Hashimoto, Takahiro, Michimae, Shoya, Watanabe, Mari, Fujisawa, Masami, Kanai, Teruto, Ishii, Nobuhisa, Itatani, Jiro, Kasahara, Shigeru, Matsuda, Yuji, Shibauchi, Takasada, Okazaki, Kozo, Shin, Shik
Publikováno v:
Communications Physics 2, 115 (2019)
Photo-excitation is a very powerful way to instantaneously drive a material into a novel quantum state without any fabrication, and variable ultrafast techniques have been developed to observe how electron-, lattice-, and spin-degrees of freedom chan
Externí odkaz:
http://arxiv.org/abs/1905.12138
Autor:
Saito, Nariyuki, Sannohe, Hiroki, Ishii, Nobuhisa, Kanai, Teruto, Kosugi, Nobuhiro, Wu, Yi, Chew, Andrew, Han, Seunghwoi, Chang, Zenghu, Itatani, Jiro
Photoinduced quantum dynamics in molecules have hierarchical temporal structures with different energy scales that are associated with electron and nuclear motions. Femtosecond-to-attosecond transient absorption spectroscopy (TAS) using high-harmonic
Externí odkaz:
http://arxiv.org/abs/1904.10456
Autor:
Okazaki, Kozo, Ogawa, Yu, Suzuki, Takeshi, Yamamoto, Takashi, Someya, Takashi, Michimae, Shoya, Watanabe, Mari, Lu, Yangfan, Nohara, Minoru, Takagi, Hidenori, Katayama, Naoyuki, Sawa, Hiroshi, Fujisawa, Masami, Kanai, Teruto, Ishii, Nobuhisa, Itatani, Jiro, Mizokawa, Takashi, Shin, Shik
Publikováno v:
Nat. Commun. 9, 4322 (2018)
Using light to manipulate materials into desired states is one of the goals in condensed matter physics, since light control can provide ultrafast and environmentally-friendly photonics devices. However, it is generally difficult to realise a photo-i
Externí odkaz:
http://arxiv.org/abs/1809.03166
Akademický článek
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Autor:
Okazaki, Kozo, Suzuki, Hakuto, Suzuki, Takeshi, Yamamoto, Takashi, Someya, Takashi, Ogawa, Yu, Okada, Masaru, Fujisawa, Masami, Kanai, Teruto, Ishii, Nobuhisa, Itatani, Jiro, Nakajima, Masamichi, Eisaki, Hiroshi, Fujimori, Atsushi, Shin, Shik
Publikováno v:
Phys. Rev. B 97, 121107(R) (2018)
We investigate the transient electronic structure of BaFe2As2, a parent compound of iron-based superconductors, by time- and angle-resolved photoemission spectroscopy. In order to probe the entire Brillouin zone, we utilize extreme ultraviolet photon
Externí odkaz:
http://arxiv.org/abs/1803.02599