Prof. Vasily Astrotov of University of North Carolina at Charlotte

In the first part of this talk, we show that resonant light forces open up a unique approach to high-volume sorting of microspherical resonators with identical energy positions of whispering gallery mode peaks. We show that photonic atoms with known positions of resonant modes can be used for building photonic molecules, routers, sensors and various structures with novel functionality. In the second part, we consider superresolution imaging applications of dielectric microspheres which can be used as contact microlenses providing resolution of nanoplasmonic and biomedical structures beyond the classical diffraction limit.

Biography:

Vasily N. Astratov is a professor of Physics and Optical Science at the University of North Carolina-Charlotte. In 1986, he received his Ph.D. degree from the A.F. Ioffe Physical-Technical Institute in Russia, where in 1995 he pioneered studies of opal photonic crystals. Since joining UNC-Charlotte in 2002, his research was devoted to microspherical photonics including super-resolution microscopy, cavity optomechanics, and photonic molecules. He was a topical editor for the journal Optics Express in 2005-2011 and a program committee member for such conferences as CLEO, IEEE Photonics, OSA Advanced Photonics Congress, Photonics West, and ICTON. He is a recipient of international visitor awards from LabEx NanoSaclay and C2N Center in Paris, Center for Materials in San Sebastian, Triangle de la Physique in France, EPSRC and Royal Society in the UK. He co-authored about 180 research publications and 15 patents which were cited more than 5000 times.

Email:

Address:Dept of Department of Physics and Optical Science, 332 Grigg Hall, Charlotte, North Carolina, United States, 28223