Talk by Prof. Govind P. Agrawal on Space-Time Duality in Optics and its Applications

There will be a talk by Prof. Govind P. Agrawal from the Institute of Optics, University of Rochester next week. The details are below:

Title: Space-Time Duality in Optics and its Applications
Date and Time: 6 January 2020, 10-11 am.
Venue: Electrical Engineering Committee Room (Block II)


The concept of space-time duality, known since the 1960s, is attracting attention in recent years in the context of temporal imaging.  In this talk, I review these advances and discuss how a modulator can act as a time lens. I then focus on our recent work on the temporal analog of reflection and refraction of optical pulses inside a dispersive medium whose refractive index changes across a temporal boundary. As an optical pulse approaches this boundary, it splits into two parts that propagate at different speeds because of their widely different spectra. An analog of the total internal reflection also occurs when the refractive index change at the boundary is large enough. This phenomenon can be used to make a temporal waveguide that confines optical pulses within a temporal window. I also discuss how the nonlinear phenomenon of cross-phase modulation can be used for making such a temporal waveguide by employing a pump-probe configuration.

About the speaker

Prof. Govind P. Agrawal is an expert on nonlinear optics, silicon photonics, and optical communications. He received the M.S. and PhD degrees from the Indian Institute of Technology, New Delhi in 1971 and 1974 respectively. After holding positions at the Ecole Polytechnique, France, the City University of New York, and AT&T Bell Laboratories, Dr Agrawal joined in 1989 the faculty of the Institute of Optics at the University of Rochester, where he is currently James C. Wyant Professor of Optics.  He is an author or co-author of more than 450 research papers and eight books.  His books on Nonlinear Fiber Optics (Academic Press, 6th ed., 2019) and Fiber-Optic Communication Systems (Wiley, 4th ed., 2010) are used worldwide for research and teaching. From January 2014 to December 2019, Agrawal served as the Editor-in-Chief of the OSA journal Advances in Optics and Photonics.
Prof. Agrawal is a Fellow of IEEE and OSA (The Optical Society) and a Life Fellow of the Optical Society of India. He I also a member of the European Physical Society. In 2012, the IEEE Photonics Society honoured him with its Quantum Electronics Award. He received in 2013 Riker University Award for Excellence in Graduate Teaching. Agrawal was given the Esther Hoffman Beller Medal in 2015. He was the recipient of two major awards in 2019: Max Born Award of the Optical Society and Quantum Electronics Prize of the European Physics Society.

All those interested to hear from Prof. Agrawal are requested to attend.

Dr. Amol Choudhary, Senior Member OSA
Assistant Professor
2019 OSA Ambassador
Department of Electrical Engineering
Indian Institute of Technology Delhi