Jiwang Yan is Professor at the Department of Mechanical Engineering at Keio University, Japan, where he heads up the Yan Laboratory. He is also Adjunct Professor at Tokyo Institute of Technology, Japan. His research interests the laser processing of materials, and ultraprecision and micro and nano manufacturing.Nozomi Takayama is a researcher at Yan Laboratory, Department of Mechanical Engineering at Keio University, Japan. Her research interest focus on laser processing.