2017 Plenary Speakers

Robert L. Byer, Stanford University, USA 

Advanced Solid State Lasers for LIGO
Einstein, Lasers, Black Holes and Gravitational Waves

On September 14, 2015 the two LIGO detectors nearly simultaneously detected gravitational wave signals from two merging Black Holes at more than one billion light years distance.  Numerical relativity models confirmed the waveform came from two Black Holes of 29 and 36 solar masses merged to create a final Black Hole with mass 62 and in the process of merging in less than 1/5 second radiated gravitational waves with more than 3 solar masses of energy.
LIGO and Advanced LIGO requirements were met and enabled by advances in solid state lasers including a single frequency laser oscillator and quantum noise limited amplification.  This is a brief story of lasers and LIGO and the direct detection of gravitational waves.

Biography: Professor Robert L. Byer is the William R. Kenan, Jr. Professor of Applied Physics at Stanford University.  He has conducted research and taught classes in lasers and nonlinear optics at Stanford University since 1969.  He has made numerous contributions to laser science and technology including the demonstration of the first tunable visible parametric oscillator, the development of the Q-switched unstable resonator Nd:YAG laser, remote sensing using tunable infrared sources and precision spectroscopy using Coherent Anti Stokes Raman Scattering (CARS).  Current research solid state laser sources with applications to gravitational wave detection and to laser particle acceleration.

Professor Byer is a Fellow of The Optical Society, the Institute of Electrical and Electronics Engineers (IEEE), the American Physical Society and the American Association for the Advancement of Science and the Laser Institute of America.  In 1985 Professor Byer served as president of the IEEE Lasers and Electro-optics Society. He was elected President of the Optical Society of America in 1994. He served as President of the American Physical Society in 2012.  

Katsumi Midorikawa, RIKEN Center for Advanced Photonics, Japan
High-Order Harmonics: Application and Prospects
Nealy thirty years have passed since the first observation of high-order harmonic generation (HHG). Although there has been strong interest in related physical phenomena, many researchers expected that HHG would not be useful as a practical source at that time because of its small photon number associated with low conversion efficiency. Contrary to their expectations, however, HHG is now established as a high-output coherent light source in the XUV region and the sole source of attosecond pulses. Here, I review our recent efforts on generation of high harmonics and applications including ultrafast XUV science and EUV optics/mask inspection.
Biography: Dr. Katsumi Midorikawa is the Director of RIKEN Center for Advanced Photonics. In 1983, He received a Ph.D. degree in Electrical Engineering from Keio University and joined the Laser Science Research Group at RIKEN. Since 1997, he has been a chief scientist of the laser technology laboratory at RIKEN. He has served as President of The Spectroscopical Society of Japan from 2012 to 2015. Currently, his research focuses on high harmonic generation and attosecond science. He also has interests in ultrashort high-intensity laser-matter interaction for application to multiphoton microscopy and laser micro processing.
Dr. Midorikawa is a fellow of IEEE Photonics Society, The Optical Society, The American Physical Society, The Japan Society of Applied Physics, and The Laser Society of Japan.