Search Results - "Kanda, Natsuki"

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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Programmable generation of counterrotating bicircular light pulses in the multi-terahertz frequency range by Ogawa, Kotaro, Kanda, Natsuki, Murotani, Yuta, Matsunaga, Ryusuke

“…The manipulation of solid states using intense infrared or terahertz light fields is a pivotal area in contemporary ultrafast photonics research. While…”
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Enantiomeric switching of chiral metamaterial for terahertz polarization modulation employing vertically deformable MEMS spirals by Kan, Tetsuo, Isozaki, Akihiro, Kanda, Natsuki, Nemoto, Natsuki, Konishi, Kuniaki, Takahashi, Hidetoshi, Kuwata-Gonokami, Makoto, Matsumoto, Kiyoshi, Shimoyama, Isao

“…Active modulation of the polarization states of terahertz light is indispensable for polarization-sensitive spectroscopy, having important applications such as…”
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Room-temperature terahertz anomalous Hall effect in Weyl antiferromagnet Mn3Sn thin films by Matsuda, Takuya, Kanda, Natsuki, Higo, Tomoya, Armitage, N. P., Nakatsuji, Satoru, Matsunaga, Ryusuke

“…Antiferromagnetic spin motion at terahertz (THz) frequencies attracts growing interests for fast spintronics, however, their smaller responses to external…”
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The vectorial control of magnetization by light by Kanda, Natsuki, Higuchi, Takuya, Shimizu, Hirokatsu, Konishi, Kuniaki, Yoshioka, Kosuke, Kuwata-Gonokami, Makoto

“…Application of coherent light–matter interactions has recently been extended to the ultrafast control of magnetization. An important but unrealized technique…”
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All-photoinduced terahertz optical activity by Kanda, Natsuki, Konishi, Kuniaki, Kuwata-Gonokami, Makoto

“…We proposed and demonstrated active control of terahertz optical activity via chiral patterned photoexcitation in a semiconductor with a spatial light…”
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Tracking Ultrafast Change of Multiterahertz Broadband Response Functions in a Photoexcited Dirac Semimetal Cd3As2 Thin Film by Kanda, Natsuki, Murotani, Yuta, Matsuda, Takuya, Goyal, Manik, Salmani-Rezaie, Salva, Yoshinobu, Jun, Stemmer, Susanne, Matsunaga, Ryusuke

“…The electromagnetic response of Dirac semimetals in the infrared and terahertz frequency ranges is attracting growing interest for potential applications in…”
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Gapless detection of broadband terahertz pulses using a metal surface in air based on field-induced second-harmonic generation by Tanaka, Shunsuke, Murotani, Yuta, Sato, Shunsuke A., Fujimoto, Tomohiro, Matsuda, Takuya, Kanda, Natsuki, Matsunaga, Ryusuke, Yoshinobu, Jun

“…We investigate second-harmonic generation (SHG) light from a Pt surface in atmosphere under terahertz (THz) pulses. THz pulse-modulated SHG intensity,   Δ I 2…”
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Real-time broadband terahertz spectroscopic imaging by using a high-sensitivity terahertz camera by Kanda, Natsuki, Konishi, Kuniaki, Nemoto, Natsuki, Midorikawa, Katsumi, Kuwata-Gonokami, Makoto

“…Terahertz (THz) imaging has a strong potential for applications because many molecules have fingerprint spectra in this frequency region. Spectroscopic imaging…”
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Spiral metamaterial for active tuning of optical activity by Kan, Tetsuo, Isozaki, Akihiro, Kanda, Natsuki, Nemoto, Natsuki, Konishi, Kuniaki, Kuwata-Gonokami, Makoto, Matsumoto, Kiyoshi, Shimoyama, Isao

“…We propose an electrostatically actuated spiral structure as a metamaterial for circularly polarized light in the terahertz (THz) frequency range. An array of…”
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Efficient coupling of propagating broadband terahertz radial beams to metal wires by Zheng, Zhu, Kanda, Natsuki, Konishi, Kuniaki, Kuwata-Gonokami, Makoto

“…Bare metal wires have recently been demonstrated as waveguides for transporting terahertz (THz) radiation, where the guiding mode is radially polarized surface…”
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Localization of Ectopic Mediastinal Parathyroid Adenomas Using Indigo Carmine Injection for Surgical Management: A Preliminary Report by Kammori, Makoto, Kanazawa, Shinsaku, Ogata, Hisae, Kanda, Natsuki, Nagashima, Takashi, Kammori, Mahiro, Ogawa, Toshihisa

“…An ectopic parathyroid adenoma (EPA) is a rare entity. The aim of this study was to report our experience in the preoperative localization and surgical…”
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Efficient Terahertz Harmonic Generation with Coherent Acceleration of Electrons in the Dirac Semimetal Cd3As2 by Cheng, Bing, Kanda, Natsuki, Ikeda, Tatsuhiko N, Matsuda, Takuya, Xia, Peiyu, Schumann, Timo, Stemmer, Susanne, Itatani, Jiro, Armitage, N P, Matsunaga, Ryusuke

“…We report strong terahertz ( ∼ 1012 Hz ) high harmonic generation at room temperature in thin films of Cd3As2 , a three-dimensional Dirac semimetal. Third…”
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Time-domain characterization of electric field vector in multi-terahertz pulses using polarization-modulated electro-optic sampling by Kanda, Natsuki, Nakagawa, Mayuri, Murotani, Yuta, Matsunaga, Ryusuke

“…We demonstrated characterizing the electric field waveform of multi-terahertz pulses (10 - 50 THz) as vector quantities in the time domain by applying the…”
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Stimulated Rayleigh Scattering Enhanced by a Longitudinal Plasma Mode in a Periodically Driven Dirac Semimetal Cd3As2 by Murotani, Yuta, Kanda, Natsuki, Ikeda, Tatsuhiko N., Matsuda, Takuya, Goyal, Manik, Yoshinobu, Jun, Kobayashi, Yohei, Stemmer, Susanne, Matsunaga, Ryusuke

“…Using broadband (12–45 THz) multi-terahertz spectroscopy, we show that stimulated Rayleigh scattering dominates the transient optical conductivity of cadmium…”
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Disentangling the Competing Mechanisms of Light-Induced Anomalous Hall Conductivity in Three-Dimensional Dirac Semimetal by Murotani, Yuta, Kanda, Natsuki, Fujimoto, Tomohiro, Matsuda, Takuya, Goyal, Manik, Yoshinobu, Jun, Kobayashi, Yohei, Oka, Takashi, Stemmer, Susanne, Matsunaga, Ryusuke

“…We experimentally elucidate the origin of the anomalous Hall conductivity in a three-dimensional Dirac semimetal, Cd3As2, driven by circularly polarized light…”
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Jitter correction for asynchronous optical sampling terahertz spectroscopy using free-running pulsed lasers by Nakagawa, Mayuri, Kanda, Natsuki, Otsu, Toshio, Ito, Isao, Kobayashi, Yohei, Matsunaga, Ryusuke

“…We demonstrate a jitter correction method for asynchronous optical sampling (ASOPS) terahertz (THz) time-domain spectroscopy using two free-running…”
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Terahertz polarization pulse shaping with arbitrary field control by Sato, Masaaki, Higuchi, Takuya, Kanda, Natsuki, Konishi, Kuniaki, Yoshioka, Kosuke, Suzuki, Takayuki, Misawa, Kazuhiko, Kuwata-Gonokami, Makoto

“…Polarization shaping of terahertz pulses enables us to manipulate the temporal evolution of the amplitude and direction of electric-field vectors in a…”
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Anomalous Hall Transport by Optically Injected Isospin Degree of Freedom in Dirac Semimetal Thin Film by Murotani, Yuta, Kanda, Natsuki, Fujimoto, Tomohiro, Matsuda, Takuya, Goyal, Manik, Yoshinobu, Jun, Kobayashi, Yohei, Oka, Takashi, Stemmer, Susanne, Matsunaga, Ryusuke

“…Chirality of massless fermions emerging in condensed matter is a key to understand their characteristic behavior as well as to exploit their functionality…”
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Observation of Terahertz Spin Hall Conductivity Spectrum in GaAs with Optical Spin Injection by Fujimoto, Tomohiro, Kurihara, Takayuki, Murotani, Yuta, Tamaya, Tomohiro, Kanda, Natsuki, Kim, Changsu, Yoshinobu, Jun, Akiyama, Hidefumi, Kato, Takeo, Matsunaga, Ryusuke

“…We report the first observation of the spin Hall conductivity spectrum in GaAs at room temperature. Our terahertz polarimetry with a precision of several μrads…”
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