Publications


Title : A non-equilibrium quasistationary state in an ionic liquid caused by a focused laser

Language: English
Type: Article
Authors: Natsuki Iguchi, Alokmay Datta, Kenichi Yoshikawa, Yukihiro Yoshida and Gunzi Saito
Journal: Chemical Physics Letters
Volume: 485
Number: 1-3
Month: 1
Year: 2010
Actual year: 2009
Pages: 110-113
URL:   http://www.sciencedirect.com/science/article/pii/S0009261409015486
doi:   10.1016/j.cplett.2009.12.035
Abstract: A radial pattern of polarization is observed in a Fe-based (but not in a Ga-based) room-temperature ionic liquid (RTIL) on irradiation by a focused laser. On switching the laser off, the pattern shows a fast (<1 s) change followed by a quasistationary structure for more than 100 s with decay exponents varying approximately from −0.2 to −0.02. Optical spectra of the RTILs indicate a band at 532 nm for the Fe-based RTIL and absence of this band in the Ga-based RTIL. A preliminary qualitative explanation based on the Hamiltonian Mean Field model of coupled rotators, where the rotators are charge transfer complex (CTC) dipoles created resonantly by the laser for the Fe-based RTIL, has been proposed.

"A non-equilibrium quasistationary state in an ionic liquid caused by a focused laser"

Natsuki Iguchi, Alokmay Datta, Kenichi Yoshikawa, Yukihiro Yoshida and Gunzi Saito, Chemical Physics Letters, 485, 110-113 (2010)