May 06, 2013
from 01:00 PM to 02:30 PM
|Where||Engr. IV Bldg., Shannon Room 54-134|
|Contact Name||Prof. Asad Abidi|
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University of Illinois
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 will report on the marriage of holography and s-SNOM, a new development that improves the speed of nano-optical imaging by orders of magnitude while simplifying the experiment. Examples will be given of large-scale (megapixel) imaging of manufactured nanostructures, CVD-grown materials, and the capture of dynamics not before possible.
Prof Carney holds a BS in Engineering Physics from UIUC (1994), and a PhD in Physics from the University of Rochester (1999). He joined the faculty of UIUC ECE in 2001. He is a theorist with research interests in inverse problems, imaging, coherence theory and other branches of optical physics.