Speaker: Prof. Eric Mazur(Harvard University，USA)

　　Time: 9:30(AM), Dec.21, 2009

　　Venue:  Academic Meeting Room, Institute of Semiconductors, CAS

　　Abstract: Shining intense, ultrashort laser pulses on the surface of a crystalline silicon wafer drastically changes the optical, material and electronic properties of the wafer. The resulting textured surface is highly absorbing and looks black to the eye. The properties of this 'black silicon' make it useful for a wide range of commercial devices. In particular, we have been able to fabricate highly-sensitive PIN photodetectors using this material. The sensitivity extends to wavelengths of 1600 nm making them particularly useful for applications in communications, remote sensing, and photovoltaics.

　　About Speaker：

　　Eric Mazur is the Balkanski Professor of Physics and Applied Physics at Harvard University. An internationally recognized scientist and researcher, he leads a vigorous research program in optical physics and supervises one of the the largest research groups in the Physics Department at Harvard University. Dr. Mazur came to Harvard University in 1982. Dr. Mazur has made important contributions to spectroscopy, light scattering, the interaction of ultrashort laser pulses with materials, and nanophotonics. In 1988 he was awarded a Presidential Young Investigator Award. He is Fellow of the Optical Society of America and Fellow of the American Physical Society, and has been named APS Centennial Lecturer during the Society's centennial year. In 2007 Mazur was appointed Phi Beta Kappa Visiting Scholar. In 2008 Mazur received the Esther Hoffman Beller award from the Optical Society of America and the Millikan Medal from the American Association of Physics Teachers. Dr. Mazur has held appointments as Visiting Professor or Distinguished Lecturer at Princeton University, Vanderbilt University, the University of Leuven in Belgium. In addition to his work in optical physics, Dr. Mazur is interested in education, science policy, outreach, and the public perception of science. He believes that better science education for all -- not just science majors -- is vital for continued scientific progress. Dr. Mazur is author or co-author of 226 scientific publications and 12 patents. He has also written on education and is the author of Peer Instruction: A User's Manual (Prentice Hall, 1997), a book that explains how to teach large lecture classes interactively. In 2006 he helped produce the award-winning DVD Interactive Teaching.