Synthetic optical holography
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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.
Prof Carney 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 when he joined the faculty of UIUC ECE. 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.