Search Results - "Horinaka, Hiromichi"

Balanced polarization maintaining fiber Sagnac interferometer vibration sensor by Wada, Kenji, Narui, Hirokazu, Yamamoto, Daiki, Matsuyama, Tetsuya, Horinaka, Hiromichi

“…To achieve a nearly zero-delay operating point in a polarization-maintaining (PM) fiber Sagnac interferometer, two identical PM fibers were incorporated so…”
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Detection of unstable plaque phantom by ultrasonic velocity-change imaging method under cold exposure by Kumagai, Yuta, Aotani, Yuhei, Kameda, Masanobu, Wada, Kenji, Matsunaka, Toshiyuki, Horinaka, Hiromichi

“…We have investigated the ultrasonic velocity-change (UVC) imaging method to detect unstable vessel plaques using the difference in the temperature coefficient…”
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Improvement of a combined ultrasonic probe used in ultrasonic velocity-change method for evaluation of fat content by Aotani, Yuhei, Kumagai, Yuta, Kameda, Masanobu, Wada, Kenji, Matsunaka, Toshiyuki, Morikawa, Hiroyasu, Horinaka, Hiromichi

“…Fatty liver is a disease in which excessive fat accumulates in the human liver. Since fatty liver can be considered as an indicator of metabolic syndrome,…”
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Timing and amplitude jitter in a gain-switched multimode semiconductor laser by Wada, Kenji, Kitagawa, Naoaki, Matsukura, Satoru, Matsuyama, Tetsuya, Horinaka, Hiromichi

“…The differences in timing jitter between a gain-switched single-mode semiconductor laser and a gain-switched multimode semiconductor laser are examined using…”
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Basic investigation on acoustic velocity change imaging method for quantitative assessment of fat content in human liver by Mano, Kazune, Tanigawa, Shohei, Hori, Makoto, Yokota, Daiki, Wada, Kenji, Matsunaka, Toshiyuki, Morikawa, Hiroyasu, Horinaka, Hiromichi

“…Fatty liver is a disease caused by the excess accumulation of fat in the human liver. The early diagnosis of fatty liver is very important, because fatty liver…”
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Development of coaxial ultrasonic probe for fatty liver diagnostic system using ultrasonic velocity change by Hori, Makoto, Yokota, Daiki, Aotani, Yuhei, Kumagai, Yuta, Wada, Kenji, Matsunaka, Toshiyuki, Morikawa, Hiroyasu, Horinaka, Hiromichi

“…A diagnostic system for fatty liver at an early stage is needed because fatty liver is linked to metabolic syndrome. We have already proposed a fatty liver…”
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Combination probe for optically assisted ultrasonic velocity-change imaging aimed at detecting unstable blood vessel plaque by Tanigawa, Shohei, Mano, Kazune, Wada, Kenji, Matsunaka, Toshiyuki, Horinaka, Hiromichi

“…Blood vessel plaque with a large lipid core is at risk of becoming thrombus and is likely to induce acute heart disease. To prevent this, it is necessary to…”
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Development of ultrasound-assisted fluorescence imaging of indocyanine green by Morikawa, Hiroyasu, Toyota, Shin, Wada, Kenji, Uchida-Kobayashi, Sawako, Kawada, Norifumi, Horinaka, Hiromichi

“…Purpose Indocyanine green (ICG) accumulation in hepatocellular carcinoma means tumors can be located by fluorescence. However, because of light scattering, it…”
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Pulse-shaping of gain-switched pulse from multimode laser diode using fiber Sagnac interferometer by Wada, Kenji, Takamatsu, Shuji, Watanebe, Hideyuki, Matsuyama, Tetsuya, Horinaka, Hiromichi

“…We propose a pulse-tail elimination and pulse shortening method using an optical interferometer, which is effective for picosecond chirped pulses from…”
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Highly spin-polarized electron photocathode based on GaAs–GaAsP superlattice grown on mosaic-structured buffer layer by Jin, Xiuguang, Maeda, Yuya, Saka, Takashi, Tanioku, Masatoshi, Fuchi, Shingo, Ujihara, Toru, Takeda, Yoshikazu, Yamamoto, Naoto, Nakagawa, Yasuhide, Mano, Atsushi, Okumi, Shoji, Yamamoto, Masahiro, Nakanishi, Tsutomu, Horinaka, Hiromichi, Kato, Toshihiro, Yasue, Tsuneo, Koshikawa, Takanori

“…We successfully developed a transmission-type photocathode, and a high polarization (90%) with a super-high brightness (1.3×10 7 A cm −2 sr −1) of electron…”
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Simple form of multimode laser diode rate equations incorporating the band filling effect by Wada, Kenji, Yoshioka, Hiroyuki, Zhu, Jiaxun, Matsuyama, Tetsuya, Horinaka, Hiromichi

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Spectroscopic Three-Dimensional Imaging of Light Scattering Medium by Detection of Ultrasonic Velocity Change owing to Light Illumination by Horinaka, Hiromichi, Ura, Tomoaki, Nakatani, Yumi, Wada, Kenji, Matsunaka, Toshiyuki

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Suppression of Side Fringes in Low-Coherence Interferometric Measurements Using Gain- or Loss-Modulated Multimode Laser Diodes by Wada, Kenji, Sato, Hideki, Yoshioka, Hiroyuki, Matsuyama, Tetsuya, Horinaka, Hiromichi

“…We examined three commercially available Fabry–Perot laser diodes with different oscillation wavelengths (660, 800, and 1550 nm) to suppress side fringes…”
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A gain-switched laser diode as a low-coherence light source by Wada, Kenji, Hirata, Kiyotaka, Yoshida, Misato, Kawai, Kiyotaka, Yoshioka, Koichi, Matsuyama, Tetsuya, Horinaka, Hiromichi, Cho, Yoshio

“…We investigated a coherence property of the multi-longitudinal mode oscillation from Fabry–Perot type laser diodes (LDs) under gain-switching operation and…”
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High Spin Polarization of Conduction Band Electrons in GaAs-GaAsP Strained Layer Superlattice Fabricated as a Spin-Polarized Electron Source by Matsuyama, Tetsuya, Takikita, Hisaya, Horinaka, Hiromichi, Wada, Kenji, Nakanishi, Tsutomu, Okumi, Shoji, Nishitani, Tomohiro, Saka, Takashi, Kato, Toshihiro

“…We measured a spin-dependent luminescence from a GaAs–GaAsP strained layer superlattice and GaAs substrate to evaluate the spin polarization of conduction band…”
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Precise measurement of single-mode fiber lengths using a gain-switched distributed feedback laser with delayed optical feedback by Wada, Kenji, Matsukura, Satoru, Tanaka, Amaka, Matsuyama, Tetsuya, Horinaka, Hiromichi

“…A simple method to measure single-mode optical fiber lengths is proposed and demonstrated using a gain-switched 1.55-μm distributed feedback laser without a…”
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Strain of GaAs/GaAsP Superlattices Used as Spin-Polarized Electron Photocathodes, Determined by X-Ray Diffraction by Saka, Takashi, Ishida, Yoichi, Kanda, Masataka, Jin, Xiuguang, Maeda, Yuya, Fuchi, Shingo, Ujihara, Toru, Takeda, Yoshikazu, Matsuyama, Tetsuya, Horinaka, Hiromichi, Kato, Toshihiro, Yamamoto, Naoto, Mano, Atsushi, Nakagawa, Yasuhide, Kuwahara, Makoto, Okumi, Shoji, Nakanishi, Tsutomu, Yamamoto, Masahiro, Ohshima, Takashi, Kohashi, Teruo, Suzuki, Masahiko, Hashimoto, Michihiro, Yasue, Tsuneo, Koshikawa, Takanori

“…The strains in GaAs/GaAsP superlattices used in spin-polarized photocathodes grown on GaAs and GaP (001) substrates were determined by X-ray diffraction. The…”
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Optical Imaging in Scattering Medium by Detection of Ultrasonic Phase Shift Due to Light Illumination by Horinaka, Hiromichi, Matsunaka, Toshiyuki, Iwade, Tomoo, Masumura, Tomoyuki, Kobayashi, Tsuyoshi, Kiuchi, Takahumi, Wada, Kenji, Cho, Yoshio

“…A method using ultrasonic velocity change due to light absorption was investigated in order to realize practical optical computed tomography. The phase shift…”
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Preparation of Poly(ethylene glycol)-Modified Poly(amido amine) Dendrimers Encapsulating Gold Nanoparticles and Their Heat-Generating Ability by Haba, Yasuhiro, Kojima, Chie, Harada, Atsushi, Ura, Tomoaki, Horinaka, Hiromichi, Kono, Kenji

“…Loading of HAuCl4 in poly(amido amine) G4 dendrimers having poly(ethylene glycol) (PEG) grafts at all chain ends and subsequent reduction with NaBH4 yielded…”
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Spin-Dependent Luminescence of Highly Polarized Electrons Generated by Two-Photon Absorption in Semiconductors by Matsuyama, Tetsuya, Horinaka, Hiromichi, Wada, Kenji, Kondo, Takashi, Hangyo, Masanori, Nakanishi, Tsutomu, Okumi, Shoji, Togawa, Kazuaki

“…The first demonstration of the generation of highly spin-polarized electrons in semiconductors using two-photon excitation was performed by measuring the…”
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