吉田三一郎,Sanichiro Yoshida received his undergraduate and graduate educations in the field of Electrical Engineering and Applied Physics from Keio University, Japan. During this period, he had the opportunity to work as a student researcher at the University of Colorado Boulder. Under the supervision of Dr. Author V. Phelps,he conducted research in gaseous electronics. From this experience,he learned basics of scientific research. After receiving a PhD in 1986 from Keio University, he has conducted experimental and theoretical research on various topics, including developments and applications of lasers, optical interferometry, optical and acoustical characterization of material strength, and deformation and fracture of solids. His recent research interest is focused on development of a wave theory of deformation and fracture of solids. Currently, he is a Professor of Physics at Southeastern Louisiana University where he enjoys research with students. When not doing science, he will be found on the Judo mats or tennis courts on campus.