1Graduate School of Engineering, Osaka University, Osaka, Japan 2Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan 3The Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan;
Graduate School of Engineering, Osaka University, Osaka, Japan;
Graduate School of Medicine, Kobe University, Kobe, Japan;
Gallstone; Lithotripsy; Mid-Infrared; Tunable; Laser; Difference-Frequency; Generation;