Search Results - "KAWAYAMA, I"

Ferroelectric soft mode in a SrTiO3 thin film impulsively driven to the anharmonic regime using intense picosecond terahertz pulses by Katayama, I, Aoki, H, Takeda, J, Shimosato, H, Ashida, M, Kinjo, R, Kawayama, I, Tonouchi, M, Nagai, M, Tanaka, K

“…The ferroelectric soft mode in a SrTiO(3) thin film was impulsively driven to a large amplitude using intense picosecond terahertz pulses. As the terahertz…”
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Imaging molecular adsorption and desorption dynamics on graphene using terahertz emission spectroscopy by Sano, Y., Kawayama, I., Tabata, M., Salek, K. A., Murakami, H., Wang, M., Vajtai, R., Ajayan, P. M., Kono, J., Tonouchi, M.

“…Being an atomically thin material, graphene is known to be extremely susceptible to its environment, including defects and phonons in the substrate on which it…”
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Anisotropy-induced crossover from Drude conductivity to charge-density-wave excitations in a stripe-type charge-ordered manganite by Rana, Rakesh, Pandey, Parul, Rana, D. S., Mavani, K. R., Kawayama, I., Murakami, H., Tonouchi, M.

“…The half-doped Pr sub(0.05) Sr sub(0.5) MnO sub(3) (PSMO) manganite represents a unique stripe type of charge orbital order that induces transport and magnetic…”
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Charge density wave excitations in stripe-type charge ordered Pr0.5Sr0.5MnO3 manganite by Rana, Rakesh, Rana, D. S., Mavani, K. R., Kawayama, I., Murakami, H., Tonouchi, M.

“…We show that a charge-density wave mode submerged in large conductivity of the stripe-type charge-ordered (CO) crystal of Pr0.5Sr0.5MnO3 (PSMO) can be…”
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Parallel-Plate Waveguide Terahertz Time Domain Spectroscopy for Ultrathin Conductive Films by Razanoelina, M., Kinjo, R., Takayama, K., Kawayama, I., Murakami, H., Mittleman, Daniel M., Tonouchi, M.

“…Development of techniques for characterization of extremely thin films is an important challenge in terahertz (THz) science and applications. Spectroscopic…”
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Terahertz emission from coherent phonons in lithium ternary chalcopyrite crystals illuminated by 1560 nm femtosecond laser pulses by Takeya, K, Takemoto, Y, Kawayama, I, Murakami, H, Matsukawa, T, Yoshimura, M, Mori, Y, Tonouchi, M

“…We have investigated terahertz (THz) emission from lithium ternary chalcopyrite crystals LiInSe2, LiGaSe2, LiInS2, and LiGaS2 that were illuminated by 1560 nm…”
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Observation of TO1 soft mode in SrTiO3 films by terahertz time domain spectroscopy by Misra, M., Kotani, K., Kawayama, I., Murakami, H., Tonouchi, M.

“…We have measured the dielectric properties of pulsed-laser-deposited SrTiO3 (STO) thin films by terahertz (THz) time-domain spectroscopy in the frequency range…”
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Effects of disorder and scaling of optical conductivity in Nd0.5Ca0.5−xBaxMnO3 (x= and 0.02) thin films as observed by terahertz time-domain spectroscopy by Mavani, K. R., Nagai, M., Rana, D. S., Yada, H., Kawayama, I., Tonouchi, M., Tanaka, K.

“…We have explored the low energy charge dynamics of charge-ordered Nd0.5Ca0.5MnO3 and Ba-doped Nd0.5Ca0.48Ba0.02MnO3 manganite thin films by recording the…”
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Collective antenna effects in the terahertz and infrared response of highly aligned carbon nanotube arrays by Ren, L., Zhang, Q., Pint, C. L., Wójcik, A. K., Bunney, M., Arikawa, T., Kawayama, I., Tonouchi, M., Hauge, R. H., Belyanin, A. A., Kono, J.

“…We study macroscopically aligned single-wall carbon nanotube arrays with uniform lengths via polarization-dependent terahertz and infrared transmission…”
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Initial growth of SrBi2Ta2O9 thin films on various substrates by Kawayama, I, Kotani, K, Tonouchi, M

“…We have investigated the initial growth of the SrBi2Ta2O9 (SBT) thin films on MgO, SrTiO3 (STO), (LaAlO3)0.3(Sr2AlTaO6)0.7 (LSAT), LaSrAlO4 (LSAO) and MgAl2O4…”
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Parallel-Plate Waveguide Terahertz Time Domain Spectroscopy for Ultrathin Conductive Films by Razanoelina, M., Kinjo, R., Takayama, K., Kawayama, I., Murakami, H., Mittleman, Daniel M., Tonouchi, M.

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THz time domain spectroscopy of pulsed laser deposited BaTiO3 thin films by Misra, M., Kotani, K., Kiwa, T., Kawayama, I., Murakami, H., Tonouchi, M.

“…We have measured the dielectric properties of pulsed laser deposited 1.1μm thick BaTiO3 (BTO) thin films on MgO substrate in the MHz and THz frequency region…”
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Effects of cation disorder on terahertz emission from half-doped manganite thin films by Mavani, K. R, Rana, D. S, Takahashi, K, Kawayama, I, Murakami, H, Tonouchi, M

“…We have observed terahertz (THz) emission from antiferromagnetic charge-ordered “undoped” Nd0.5Ca0.5MnO3 and “Ba-doped” Nd0.5Ca0.48Ba0.02MnO3 manganites by…”
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Detection of Magnetic Signal in High-Tc Superconductor Devices by Scanning Laser Magneto-Optical Microscope by Kitamura, R., Murakami, H., Kawayama, I., Tonouchi, M.

“…We have fabricated a superconducting vortex flow transistor (SVFT) device with a YBa 2 Cu 3 O 7-delta (YBCO) thin film on an MgO substrate. To detect the local…”
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Implications of phase-segregation on structure, terahertz emission and magnetization of Bi(Fe1-xMnx)O3 (0≤x≤0.5) thin films by Rana, D. S, Kawayama, I, Takahashi, K, Mavani, K. R, Murakami, H, Tonouchi, M, Yanagida, T, Tanaka, H, Kawai, T

“…Structural, magnetic and terahertz emission properties of Bi (Fe$_{1-x}$Mnx)O3  (0 $\leqslant$ x $\leqslant$ 0.5) thin films of various thicknesses were…”
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Magneto-optical imaging of magnetic flux distribution in high- Tc superconductors by Ueno, K., Murakamia, H., Kawayama, I., Doda, Y., Tonouchi, M., Chikumoto, N.

“…Prototype systems of home-made magneto-optical microscopes were fabricated, and preliminary studies were carried out using Bi 2Sr 2CaCu 2O 8+ δ single crystals…”
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Ferroelectric Soft Mode in a SrTiO 3 Thin Film Impulsively Driven to the Anharmonic Regime Using Intense Picosecond Terahertz Pulses by Katayama, I., Aoki, H., Takeda, J., Shimosato, H., Ashida, M., Kinjo, R., Kawayama, I., Tonouchi, M., Nagai, M., Tanaka, K.

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An ultrasensitive terahertz microfluidic chip based on Fano resonance of a few arrays of meta-atoms by Serita, K., Murakami, H., Kawayama, I., Tonouchi, M.

“…We present a nonlinear optical crystal-based terahertz (THz)-microfluidic chip with a few arrays of asymmetric meta-atoms for the measurements of small amount…”
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Ultrafast optical study of amorphous Ge thin films for superconductor/semiconductor hybrid devices by Miyadera, T., Kiwa, T., Kawayama, I., Murakami, H., Tonouchi, M.

“…We investigated the optical response of amorphous (a-) Ge thin films by a time-resolved reflectivity measurement and the observation of terahertz radiation…”
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Detection of Photomixing Signals With a YBCO Josephson Junction Coupled to a Coplanar Waveguide by Kawayama, I.., Kinjo, R.., Kiwa, T.., Murakami, H.., Tonouchi, M..

“…We have fabricated a generation and detection system of photomixing signals using a photomixing technique and a Josephson junction detector. Up to now, an…”
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