Synthetic Optical Holography

Dr. P. Scott Carney, Institute of Optics

Goergen 101

Abstract:

Scattering scanning near-field optical microscopy (s-SNOM) provides resolution of 5-10 nm and is inherently phase-sensitive.  It is also slow, the bottleneck being the determination of phase and amplitude at each pixel.  Holography is an efficient, multiplex method of acquiring phase across a whole image.  I report on the marriage of holography and s-SNOM, a new development that improves the speed of nanooptical imaging by orders of magnitude while simplifying the experiment.  Moreover, synthetic optical holography is quite general.  I will show the method applied to confocal imaging where it provides phase sensitive data that may be coherently post-processed.

Bio:

Professor Carney is Director of The Institute of Optics, University of Rochester. He holds a BS in Engineering Physics from UIUC (1994), and a PhD in Physics from the University of Rochester (1999).  He was a post-doctoral associate at Washington University from 1999 to 2001; then joined the faculty of UIUC ECE where he taught for 16 years until joining UR in July 2017.  He is a theorist with research interests in inverse problems, imaging, coherence theory and other branches of optical physics.  He is also the cofounder of Diagnostic Photonics, Inc., a company bringing innovations in computed imaging to the surgical market.  He is active in the community beyond his research, serving as the editor-in-chief of the Journal of the Optical Society of America A and General Co-Chair of the 2016 Frontiers in Optics conference.

Location: Goergen 101

Refreshments will be served.