Ohta Laboratory 

    N. Ohta has completed his PhD from Tohoku University, Sendai, Japan, and postdoctoral studies from Marquette University in Milwaukee, USA. Until March 2015, he was Professor at Hokkaido University, Sapporo, Japan. He is now Chair Professor at National Yang Ming Chiao Tung University, Hsinchu, Taiwan and Professor Emeritus at Hokkaido University.

    He is interesting in electric field effects on structure, dynamics, and function of photoexcited molecules and molecular systems including optoelectronic materials, molecular conductors, ionic conductors, and living cells. He has focused to the Photoelectric and Photobioelelctric Research, where novel materials functions and novel biological function are quested by photoirradiation and application of electric field. In the materials research, electroabsorption and electrophotoluminescence spectra, i.e., electric field effects on absorption and photoluminescence spectra, time-resolved photoluminescence decay with and without application of electric field and time-resolved photocurrent have been measured. In the research of biological system, he has focused on autofluorescence lifetime microscopy to examine intracellular function and its ultrashort pulsed electric field effect with special attention to the difference between non-malignant normal cells and cancerous cells.