Search Results - "ISHII, NOBUHISA"

Optical parametric amplification of phase-stable terahertz-to-mid-infrared pulses studied in the time domain by Kanda, Natsuki, Ishii, Nobuhisa, Itatani, Jiro, Matsunaga, Ryusuke

“…We report optical parametric amplification (OPA) of low-frequency infrared pulses in the intermediate region between terahertz (THz) frequency and mid-infrared…”
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Sub-two-cycle intense pulse generation based on two-stage hollow-core fiber compression using an ytterbium amplifier by Ishii, Nobuhisa, Itakura, Ryuji

“…We demonstrate the generation of sub-two-cycle intense laser pulses based on two-stage hollow-core fiber (HCF) compression in a compact setup (footprint of…”
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Optical parametric amplification of carrier-envelope phase-stabilized mid-infrared pulses generated by intra-pulse difference frequency generation by Ishii, Nobuhisa, Xia, Peiyu, Kanai, Teruto, Itatani, Jiro

“…We report on a wavelength-tunable optical parametric amplifier (OPA) from 2.7 to 3.8 μm seeded with carrier-envelope phase (CEP) stabilized pulses generated by…”
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Real-time observation of electronic, vibrational, and rotational dynamics in nitric oxide with attosecond soft x-ray pulses at 400 eV by Saito, Nariyuki, Sannohe, Hiroki, Ishii, Nobuhisa, Kanai, Teruto, Kosugi, Nobuhiro, Wu, Yi, Chew, Andrew, Han, Seunghwoi, Chang, Zenghu, Itatani, Jiro

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Nonlinear propagation effects in high harmonic generation in reflection and transmission from gallium arsenide by Xia, Peiyu, Kim, Changsu, Lu, Faming, Kanai, Teruto, Akiyama, Hidefumi, Itatani, Jiro, Ishii, Nobuhisa

“…High harmonic spectroscopy in solids is emerging as a new tool to investigate ultrafast electron dynamics in the presence of strong optical fields. However,…”
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All-optical characterization of the two-dimensional waveform and the Gouy phase of an infrared pulse based on plasma fluorescence of gas by Saito, Nariyuki, Ishii, Nobuhisa, Kanai, Teruto, Itatani, Jiro

“…The characterization of the temporal waveform of few-cycle laser pulses is an indispensable part in strong-field physics and attosecond science. Recently, a…”
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Polarization-Resolved Study of High Harmonics from Bulk Semiconductors by Kaneshima, Keisuke, Shinohara, Yasushi, Takeuchi, Kengo, Ishii, Nobuhisa, Imasaka, Kotaro, Kaji, Tomohiro, Ashihara, Satoshi, Ishikawa, Kenichi L, Itatani, Jiro

“…The polarization property of high harmonics from gallium selenide is investigated using linearly polarized midinfrared laser pulses. With a high electric…”
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Generation and compression of an intense infrared white light continuum in YAG irradiated by picosecond pulses by Ishii, Nobuhisa, Maruyama, Momoko, Nagashima, Keisuke, Ochi, Yoshihiro, Itakura, Ryuji

“…An intense white light (WL) continuum from 1600 to 2400 nm is generated in a 20-mm-long YAG irradiated by 1-ps, 1030-nm pulses. Long filamentation formed in…”
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Photo-induced semimetallic states realised in electron–hole coupled insulators by 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

“…Using light to manipulate materials into desired states is one of the goals in condensed matter physics, since light control can provide ultrafast and…”
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Observation of selection rules for circularly polarized fields in high-harmonic generation from a crystalline solid by Saito, Nariyuki, Xia, Peiyu, Lu, Faming, Kanai, Teruto, Itatani, Jiro, Ishii, Nobuhisa

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Ultrafast Unbalanced Electron Distributions in Quasicrystalline 30° Twisted Bilayer Graphene by Suzuki, Takeshi, Iimori, Takushi, Ahn, Sung Joon, Zhao, Yuhao, Watanabe, Mari, Xu, Jiadi, Fujisawa, Masami, Kanai, Teruto, Ishii, Nobuhisa, Itatani, Jiro, Suwa, Kento, Fukidome, Hirokazu, Tanaka, Satoru, Ahn, Joung Real, Okazaki, Kozo, Shin, Shik, Komori, Fumio, Matsuda, Iwao

“…Ultrafast carrier dynamics in a graphene system are very important in terms of optoelectronic devices. Recently, a twisted bilayer graphene has been discovered…”
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Attosecond streaking measurement of extreme ultraviolet pulses using a long-wavelength electric field by Saito, Nariyuki, Ishii, Nobuhisa, Kanai, Teruto, Watanabe, Shuntaro, Itatani, Jiro

“…Long-wavelength lasers have great potential to become a new-generation drive laser for tabletop coherent light sources in the soft X-ray region. Because of the…”
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Carrier-envelope phase-dependent high harmonic generation in the water window using few-cycle infrared pulses by Ishii, Nobuhisa, Kaneshima, Keisuke, Kitano, Kenta, Kanai, Teruto, Watanabe, Shuntaro, Itatani, Jiro

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High-order harmonic generation from hybrid organic–inorganic perovskite thin films by Hirori, Hideki, Xia, Peiyu, Shinohara, Yasushi, Otobe, Tomohito, Sanari, Yasuyuki, Tahara, Hirokazu, Ishii, Nobuhisa, Itatani, Jiro, Ishikawa, Kenichi L., Aharen, Tomoko, Ozaki, Masashi, Wakamiya, Atsushi, Kanemitsu, Yoshihiko

“…The generation of high-order harmonics from hybrid organic–inorganic perovskites (HOIPs) is demonstrated by the excitation with a strong mid-infrared laser…”
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Ultrafast Control of Ferroelectricity with Dynamical Repositioning of Protons in a Supramolecular Cocrystal Studied by Femtosecond Nonlinear Spectroscopy by Umanodan, Tsugumi, Kaneshima, Keisuke, Takeuchi, Kengo, Ishii, Nobuhisa, Itatani, Jiro, Hirori, Hideki, Sanari, Yasuyuki, Tanaka, Koichiro, Kanemitsu, Yoshihiko, Ishikawa, Tadahiko, Koshihara, Shin-ya, Horiuchi, Sachio, Okimoto, Yoichi

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Generation of sub-two-cycle CEP-stable optical pulses at 3.5 μm by multiple-plate pulse compression for high-harmonic generation in crystals by Peiyu, Xia, Faming, Lu, Nobuhisa, Ishii, Teruto, Kanai, Jiro, Itatani

“…Multiple-plate pulse compression of femtosecond mid-infrared pulses is demonstrated using YAG and Si windows. With this robust compression scheme, we produce…”
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Resonant-Like Field Enhancement by Nanoscale Grating-Coupled Propagating Surface Plasmons and Localized Surface Plasmons in the Mid-Infrared Range: Implications for Ultrafast Plasmonic Electron Sources by Mizuno, Tomoya, Takeuchi, Kengo, Kaneshima, Keisuke, Ishii, Nobuhisa, Kanai, Teruto, Itatani, Jiro

“…We investigated electron emission induced by an intense mid-infrared (MIR) field from a nanoscale aluminum-coated grating. The total photoelectron yields…”
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Rib cage contributions to inspiratory capacity in patients with cervical spinal cord injury by Yoshida, Ryo, Kawamura, Kenta, Setaka, Yukako, Woo, Hyunjae, Ishii, Nobuhisa, Mizukami, Masafumi, Mutsuzaki, Hirotaka, Tomita, Kazuhide

“…Cervical spinal cord injury (CSI) often leads to impaired respiratory function, affecting the overall well-being of patients. This study aimed to investigate…”
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High harmonic generation from GaSe in a deep-UV range well above the bandgap by Imasaka, Kotaro, Shinohara, Yasushi, Kaji, Tomohiro, Kaneshima, Keisuke, Ishii, Nobuhisa, Itatani, Jiro, Ishikawa, Kenichi L., Ashihara, Satoshi

“…We demonstrate high harmonic generation from GaSe in the deep-UV range with its photon energy reaching three times the bandgap energy. The harmonic spectrum…”
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Ultrabroadband infrared chirped mirrors characterized by a white-light Michelson interferometer by Kaneshima, Keisuke, Sugiura, Muneo, Tamura, Koichi, Ishii, Nobuhisa, Itatani, Jiro

“…We fabricated and characterized a pair of ultrabroadband chirped mirrors (CMs) in the infrared. These mirrors provide smooth control of the spectral phases in…”
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