Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sotome, M."'
Publikováno v:
Phys. Rev. A 98, 013843 (2018)
We observe a terahertz radiation from a hydrogen-bonded organic molecular ferroelectric 5,6-dichloro-2-methylbenzimidazole excited by a femtosecond laser pulse at room temperature. The emitted terahertz wave consists of three oscillatory components,
Externí odkaz:
http://arxiv.org/abs/1803.10377
Autor:
Sotome, M., Nakamura, M., Fujioka, J., Ogino, M., Kaneko, Y., Morimoto, T., Zhang, Y., Kawasaki, M., Nagaosa, N., Tokura, Y., Ogawa, N.
Photoexcitation in solids brings about transitions of electrons/holes between different electronic bands. If the solid lacks an inversion symmetry, these electronic transitions support spontaneous photocurrent due to the topological character of the
Externí odkaz:
http://arxiv.org/abs/1801.10297
We demonstrate a new method to detect ferroelectric domains in inside and surface regions of organic ferroelectrics by mapping out two orthogonally polarized terahertz waves radiated from the crystal upon the irradiation of near-infrared femtosecond
Externí odkaz:
http://arxiv.org/abs/1412.2833
Polarization control of terahertz wave is a challenging subject in terahertz science and technology. Here, we report a simple method to control polarization state of the terahertz wave in terahertz generation process. At room temperature, terahertz r
Externí odkaz:
http://arxiv.org/abs/1412.2835
Autor:
Guan, W., Kida, N., Sotome, M., Kinoshita, Y., Takeda, R., Inoue, A., Horiuchi, S., Okamoto, H.
Publikováno v:
Jpn. J. Appl. Phys. 53, 09PD07 (2014); Special issue on "Ferroelectric Materials and Their Applications"
Terahertz radiation by optical rectification has been observed at room temperature in a hydrogen-bonded organic molecular ferroelectric crystal, 2-phenyl malondialdehyde (PhMDA). The radiated electromagnetic wave consisted of a single-cycle terahertz
Externí odkaz:
http://arxiv.org/abs/1409.2958
Publikováno v:
Jpn. J. Appl. Phys. 53, 09PD08 (2014); Special issue on "Ferroelectric Materials and Their Applications"
We report on the emission of terahertz radiation by irradiation of femtosecond laser pulses in non-centrosymmetric paraelectric and ferroelectric phases of Co$_3$B$_7$O$_{13}$I boracite. The Generation of the terahertz waves in both phases is caused
Externí odkaz:
http://arxiv.org/abs/1409.2960
Publikováno v:
Phys. Rev. A 90, 033842 (2014) (15 pages)
We report on the observation of terahertz radiation in a non-centrosymmetric insulating oxide, paratellurite ($\alpha$-TeO$_2$) by irradiation of a femtosecond laser pulse at room temperature. In the power spectrum of the terahertz radiation, an inte
Externí odkaz:
http://arxiv.org/abs/1407.7323
Autor:
Sotome, M., Nakamura, M., Fujioka, J., Ogino, M., Kaneko, Y., Morimoto, T., Zhang, Y., Kawasaki, M., Nagaosa, N., Tokura, Y., Ogawa, N.
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2019 Feb 01. 116(6), 1929-1933.
Externí odkaz:
https://www.jstor.org/stable/26663764
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