Giving to CREOL CREOL, The College of Optics & Photonics

Seminar: "Quantized photonic spin and new bosonic phases of matter" by Zubin Jacob

Tuesday, April 17, 2018 12:00 PM to 1:00 PM
CREOL Room 103

Zubin Jacob
Purdue University


The quantum spin Hall phase of matter is defined as a two-dimensional bulk insulator with conducting fermionic edge states. The hallmark of this phase of matter is the existence of spin-1/2 quantized edge states with massless Dirac fermionic property. 

Intriguingly, we have recently discovered a bosonic phase of matter which has spin-1 quantized edge states with massless photonic properties. We show that photons acquire an effective mass in the bulk of such a bosonic phase of matter and if found in nature would exhibit the first bosonic topological phase of matter with integer spin edge state quantization. This discovery builds on a relativistic field theory utilizing Dirac-Maxwell correspondence as opposed to existing Schrodinger-Maxwell theories that do not account for photon spin. We will discuss approaches to experimentally isolate such a bosonic phase of matter.

Finally, I will discuss an overview of recent experimental research in my group including (a) extreme-skin-depth waveguides (b) electron energy loss spectroscopy (c) universal photonic spin-momentum locking where the spin of photons is locked to the momentum of propagation of waves and (d) high temperature phonon-assisted thermal radiation 


Prof. Zubin Jacob is an assistant professor of Electrical and Computer Engineering at Purdue University, adjunct faculty at University of Alberta, Canada and visiting faculty at the International Center for Theoretical Science, Tata Institute of Fundamental Research, Bangalore, India. He completed his PhD from Purdue University in 2010, M.S from Princeton University in 2007 and B.Tech.E.E. from the Indian Institute of Technology - Bombay in 2004. He is the recipient of the NSF CAREER award 2017 and DARPA Young Faculty Award 2017. According to google scholar, his research group's publications have been cited more than 5000 times with an h-index of 27.  

For additional information:

Mercedeh Khajavikhan

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