Title: 

Nanometaphotonics with III-Nitrides

Speaker:

Ganapathi (Ganesh) Subramania,

Sandia National Laboratories, Albuquerque, NM

Date, Time and Location:

Thursday, November 10, 2022, from 12:15 PM - 1:15 PM at CHTM, Room 103, and via Zoom.

Abstract:

Nanostructures like photonic crystals, metamaterials and metasurfaces have enabled and are continuing to enable novel avenues of light manipulation at wavelength and subwavelength scales. They have demonstrated unprecedented capabilities combined with great versatility to control various properties of light -propagation, polarization, emission and photon statistics. III-nitride based materials are important for such light manipulation at the visible and ultraviolet regimes as evidenced by their success in solid state lighting and some lasing applications. III-nitride materials pose unique materials processing challenges for nanophotonics compared to Si and III-V semiconductors that are now considerably advanced. This talk will explore some works and results including challenges of III-N nanophotonics research based on photonic crystals and metamaterials performed at Sandia.

Biography:

Dr. Ganesh Subramania is currently a staff member at Sandia National Laboratories at ABQ in the Semiconductor Materials and Device Sciences department. He obtained his undergraduate degree in Electrical Engineering from the Indian Institute of Technology, Chennai, India. He obtained his Master’s in Condensed Matter Physics from Iowa State University in 1994. He obtained his Ph.D with Co-Majors in Applied Physics and Electrical Engineering in 2000 also at Iowa State University, following which he joined MIT as a postdoc. He joined Sandia National Laboratories in 2001.

Currently, his research interests encompass experimental realization and study of nanoscale structures (photonic crystals, metamaterials and plasmonics) for enhancing light-matter interaction and quantum information science and topological photonics. Ganesh is an SPIE Fellow and OSA Senior member and serves as a Chair of the annual SPIE Conference Active Photonic Platforms. He is currently also an Associate editor of SPIE’s Journal of Nanophotonics.