Shin-ya Koshihara
Tokyo Institute of Technology
307 Papers
1.7K Citations
Shin-ya Koshihara is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Phase transition & Femtosecond. The author has an hindex of 47, co-authored 297 publications. Previous affiliations of Shin-ya Koshihara include National Chemical Laboratory & University of Tokyo.
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Papers
Ultrafast Dynamics of Reversibly Photoinduced Neutral-Ionic Transition in Tetrathiafulvalene-Chloranil Single Crystals
TL;DR: In this article, the phase transition in the single crystal of Tetrathiafulvalene-chloranil (TTF-CA) can be triggered by pulsed laser excitation with 100 femto-second width.
Dielectric Spectra of Relaxor Pb(Mg1/3Nb2/3)O3 Single Crystal
TL;DR: In this paper, the frequency dependence of dielectric responses of lead magnesium niobate (PMN) in the range from 1 mHz to 10 MHz at various temperatures (200 K-350 K).
Ultrafast infrared spectroscopic study of the photo-induced phase transition in (EDO-TTF)/sub 2/PF/sub 6/
Ken Onda,Tadahiko Ishikawa,Matthieu Chollet,Shao Xiangfeng,H. Yamohchi,G. Saito,Shin-ya Koshihara +6 more
- 11 Jul 2005
TL;DR: In this article, the authors measured ultrafast reflectivity change of (EDO-TTF)2PF6 in the infrared region (0.51 eV 1.03 eV) after excitation with 1.58 eV photon in order to reveal mechanism of ultra-fast photo-induced insulator-to-metal phase transition.
Patent
Time-resolved photoemission electron microscope device and method for acquiring carrier dynamics image using said device
Shin-ya Koshihara,Keiki Fukumoto +1 more
- 07 Sep 2018
TL;DR: In this article, a time-resolved photoemission electron microscopy has a laser light source (1) for repeated variable frequency output of pulses having a pulse width at the femtosecond level or lower, a pump light generation unit for subjecting the light output from the laser source to wavelength conversion and thereby generating pump light pulse (8) for exciting photo-carriers of a sample, and a probe light pulse generation unit (7) for causing the photo carriers excited by the pump light pulses to be photo-emitted from the sample through the photoelectric