Educational Background
PhD in Nanophotonics from Swinburne University and IIT Madras under Joint Degree Program (2017 - 2020)
MS in Electrical Engineering from IIT Madras (2014 - 2017)
BTech in ECE from JNTU (2008 - 2012)
PhD Research
Thesis Title: Improved Techniques for Complex Light Generation using Diffractive and Meta-surfaces
I have demonstrated complex light generation using Diffractive Optical Elements and the recently emerging Metasurfaces. We have improved the generation efficiency by adopting the all-dielectric metasurfaces. Experimentally demonstrated the complex light generation using metasurfaces across visible, infrared and terahertz spectral regions. I have developed two software called GDoeSII and MetaOptics to create GDSII layouts of DOEs and metasurfaces respectively. Both this software are published in reputed journals and received critical appreciation from the community.
MetaOptics-Software to generate GDSII layouts for metasurfaces:
MetaOptics uses FDTD phase vs varying dimension data for a given geometry (cross, cylinder etc.) and creates a GDSII layout for any DOE phase mask. It also has an inbuilt library to generate Axicons, FZLs and Spiral Phase plates. MetaOptics is released under CC by NC 3.0 license.
GDoeSII-Image to GDSII conversion Software:
(GDoeSII) can convert Image files to GDSII lithography formats. The Software can also perform Scalar Diffraction simulations. This is a very simple, easy-to-use and fast tool. GDoeSII is released under CC by NC 3.0 license.
GDoeSII is now published as an open-source software on SoftwareX (Elsevier) and please cite this if you used for your research.
Raghu Dharmavarapu, Shanti Bhattacharya, Saulius Juodkazis, "GDOESII: Software for design of diffractive optical elements and phase mask conversion to GDSII lithography files," SoftwareX 9, 126-131 (2019) . Article link