OSA Rochester Section
 

Ultrafast Lasers for Photonics/Optics Fabrication and Optical Differentiation Wavefront Sensing for Freeform Metrology and Wavfront Control of Laser Systems

  • February 21, 2017
  • 7:00 PM - 8:00 PM
  • Laboratory for Laser Energetics - East Lobby 240 East River Road, Rochester NY 14623

Abstract:


The research on next-generation, laser-based manufacturing technologies is highly interdisciplinary, intersecting novel ultrafast laser technology, systems, metrology, precision controls, materials, and the associated laser-material interaction processes.  The first part of the talk presents novel systems and physical mechanisms, processes using ultrafast lasers for the polishing and welding of photonic devices and micro- optics. The second part of the talk presents a new optical differentiation wavefront sensing technique based on measurements of wavefront slopes obtained by far-field spatial modulation with a binary pixelated filter inducing a linear amplitude transmission. This sensor is expected to offer phase measurement with higher spatial resolution, higher dynamic range and higher signal-to-noise ratio for freeform metrology lasers, vison, and astronomy applications.


Biographic Sketch:


Jie Qiao is currently an Associate Professor in the Carlson Center for Imaging Science at Rochester Institute of Technology. She leads the Advanced Optical Fabrication, Instrumentation & Metrology Laboratory where her team works on ultrafast-lasers for advanced photonics / optics fabrication and additive manufacturing, optical metrology, and instrumentation. Prior to joining RIT, she was a laser system scientist at the DOE-funded Laboratory for Laser Energetics, University of Rochester from 2005 to 2013. She was the PI and led the technical team that demonstrated the world’s first 1.5-meter tiled-grating pulse compressor for the kilojoule, petawatt OMEGA EP short pulse lasers. Prior to that, Dr. Qiao had worked on various innovative photonic devices, optical imaging and metrology systems, for two photonic startups and one optics company (Optikos). Dr. Qiao earned her Ph.D. in Electrical and Computer Engineering from the University of Texas at Austin and an M.B.A in entrepreneurship, strategy, finance and marketing from the Simon Graduate School of Business, University of Rochester. Dr. Qiao has 15 journal publications, over 50 conference presentations, and holds two patents. Dr. Qiao founded WiSTEE Connect (Women in Science, Technology, Engineering and Entrepreneurship, www.wisteeconnect.org) in 2013, for which she is serving as the Chair. 


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