論文 - 小山 剛史
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Ultrafast Exciton Energy Transfer in Bundles of Single-Walled Carbon Nanotubes 査読有り
Takeshi Koyama*, Koji Asaka, Naoki Hikosaka, Hideo Kishida, Yahachi Saito, and Arao Nakamura
The Journal of Physical Chemistry Letters 2 巻 ( 3 ) 頁: 127-132 2011年2月
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Bright Luminescence and Exciton Energy Transfer in Polymer-Wrapped Single-Walled Carbon Nanotube Bundles 査読有り
Takeshi Koyama*, Yasumitsu Miyata, Yuki Asada, Hisanori Shinohara, Hiromichi Kataura, and Arao Nakamura
The Journal of Physical Chemistry Letters 1 巻 頁: 3243-3248 2010年11月
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Observation of nuclear wave packets in the excited state of the F center in alkali halides 査読有り
Takeshi Koyama*, Makoto Nakajima, and Tohru Suemoto
Journal of Luminescence 129 巻 ( 12 ) 頁: 1435-1440 2009年12月
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Femtosecond Depolarization of Hot Luminescence from the F Center in KCl 査読有り
Takeshi Koyama*, Makoto Nakajima, Tohru Suemoto
Journal of the Physical Society of Japan 78 巻 ( 7 ) 頁: 075002/1-2 2009年7月
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Second 2s-2p level crossing at the F center in KCl evidenced by frequency up-conversion spectroscopy 査読有り
Takeshi Koyama*, Makoto Nakajima, and Tohru Suemoto
Physical Review B 79 巻 ( 19 ) 頁: 193103/1-4 2009年5月
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Dynamics of nuclear wave packet in the excited state of KCl F centers 査読有り
Takeshi Koyama*, Makoto Nakajima, and Tohru Suemoto
Physica Status Solidi (c) 6 巻 ( 1 ) 頁: 108-111 2009年1月
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Observation of nuclear wave packet oscillations at the F center in KCl and RbCl 査読有り
Takeshi Koyama*, Makoto Nakajima, and Tohru Suemoto
Physical Review B 78 巻 ( 15 ) 頁: 155126/1-5 2008年10月
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Nuclear wave-packet dynamics on nearly degenerate two adiabatic potential energy surfaces in the excited state of KI F centers 査読有り
Takeshi Koyama*, Youtarou Takahashi, Makoto Nakajima, and Tohru Suemoto
Physical Review B 76 巻 ( 11 ) 頁: 115122/1-10 2007年9月
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Dynamical behavior of the wave packets on adiabatic potential surfaces observed by femtosecond luminescence spectroscopy 査読有り
Tohru Suemoto*, Makoto Nakajima, Taira Matsuoka, Keizo Yasukawa, and Takeshi Koyama
Journal of Luminescence 122-123 巻 頁: 517-521 2007年1月
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Wave-packet oscillation in the excited state of KBr F centers 査読有り
Takeshi Koyama*, Youtarou Takahashi, Makoto Nakajima, and Tohru Suemoto
Journal of Luminescence 119 巻 頁: 43-46 2006年7月
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Persistent nuclear wave packet oscillation coexistent with incoherent vibrational population at excited F centers in KI 査読有り
Takeshi Koyama*, Youtarou Takahashi, Makoto Nakajima, and Tohru Suemoto
Journal of Chemical Physics 124 巻 ( 22 ) 頁: 221104/1-2 2006年6月
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Real-time observation on femtosecond depolarization of room-temperature luminescence in KI F centers 査読有り
Takeshi Koyama*, Youtarou Takahashi, Makoto Nakajima, and Tohru Suemoto
Journal of the Physical Society of Japan 75 巻 ( 4 ) 頁: 045001/1-2 2006年4月
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Selective observation of the wave-packet dynamics in the excited states at KBr F centers by luminescence experiments 査読有り
Takeshi Koyama*, Youtarou Takahashi, Makoto Nakajima, and Tohru Suemoto
Physical Review B 73 巻 ( 16 ) 頁: 161102/1-4 2006年4月