Title:Evolution of Nanophotonics Technology from Semiconductor Photonic Crystal Device to Metal Related Plasmonic/Metamaterial Device
Speaker: Prof. Yoshimasa Sugimoto(Photonic Materials Unit, National Institute for Materials Science, Japan)
Abstract:Nano-photonic structures/materials such as surface plasmon and negative-index material as well as quantum dots (QD) and photonic crystals (PCs) are discussed from potentials for new photonic devices and technologies. PC slab waveguides and QDs were developed for key photonic devices such as ultra-small and ultrafast symmetrical Mach–Zehnder (SMZ)-type all-optical switch (PC-SMZ) and an optical flip-flop device (PC-FF). We have studied energy-saving light/matter interaction in a PC waveguide with emphasis on virtual-excitation-based nonlinear effects such as optical Kerr effect. We have also demonstrated a new RGB color filter on Al film with sub-wavelength holes in a large area with a high precision and optical beam-steering device with a wide steering angle.
About speaker: Dr. Yoshimasa Sugimoto received the B.E. degree, the M.E. degree and Ph. D degree in electronic engineering from Shizuoka University, Shizuoka, Japan, in 1978, 1980 and 1996, respectively. In 1980, he joined the Central Research Laboratories, NEC Corporation, Kawasaki. He has been engaged in the research and development of photo-detectors, VCSELs and dry etching process for III-V compound semiconductors. He joined the Femtosecond Technology Research Association (FESTA), where he developed nanoprocessing technologies of photonic crystals for ultra-fast photonic devices, from 2000 to 2004. Since 2007, he is engaged in the National Institute for Materials Science (NIMS), where he is currently developing nanoprocessing technologies of Nanophotonic devices such as photonic crystals for ultra-fast photonic devices, plasmonic optical color filters and metamaterial devices. From 2004 to 2007, he was a Visiting Professor in the Center of Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Japan. From 2010 to present, he is a Visiting Professor in the Faculty of Science and Engineering, Ritsumeikan University.
Time:9:00am, Oct. 28, 2011
Venue:Academic Salon Room, Institute of Semiconductors, CAS