Institution: | (1) Research Center for Development for Far-Infrared Region, University of Fukui, 910 Fukui, Japan;(2) Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria;(3) Cryogenic Laboratory, Faculty of Engineering, University of Fukui, 910 Fukui, Japan;(4) Institute for Protein Research, Osaka University, Osaka, Japan |