• Doctor of Philosophy (Ph.D.) in the area of Fiber & Integrated Optics, Department of Physics, Indian Institute of Technology Delhi (2004-2008)
• Master of Science (M.Sc.) in Physics, Indian Institute of Technology Delhi (2002–2004)
• Bachelor of Science (Hons.) in Physics, Hindu College, University of Delhi (1999–2002)

• Professor, Optics and Photonics Centre, Indian Institute of Technology, Delhi,(2025 - present)
• Associate Professor, Optics and Photonics Centre, Indian Institute of Technology, Delhi,(2023 - 2025)
• Associate Professor, School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar (India) (2019 –2023)
• Reader-F, School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar (India) (2014 –2019)
• Assistant Professor, School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar (India) (2010– 2014)
• Postdoctoral Research Fellow in Optical Parametric Oscillators (OPO) group at ICFO-The Institute of Photonic Sciences, Barcelona (Spain) (2008–2010).

• * Nonlinear Optics: In this area, the group focuses on devising high-power second harmonic generators and optical parametric oscillators (OPOs), which provide plausible routes to reach those spectral regions that are inaccessible to conventional laser technology at all time-scales (cw to femtosecond) via exploiting second-order nonlinear optical properties of non-centro-symmetric crystals. Such sources are employed for trace-gas sensing and absorption spectroscopy of trace-gas molecules such as methane, formaldehyde, and carbon dioxide. In addition, the group investigates the absorption and emission properties of a broad class of sub-wavelength organic and inorganic aggregates (or nanoparticles/nanoclusters) using nonlinear optical spectroscopy through estimating the third-order nonlinear optical coefficients using techniques such as Z-scan and I-scan. * Nanophotonics and surface optics: In this area, the group focuses on electromagnetic wave propagation through periodically and quasi-periodically stratified media containing plasmon-active metals and other hybrid configurations. The investigations aim to discover possibilities of coupling between different degrees of freedom of propagating modes and surface (stationary) modes such as Tamm-plasmon modes, surface-plasmon modes, and a few more. The primary goal of this research activity is to realize robust and low-loss optical transmission channels using the topological properties of the bulk optical medium. This area of research also provides a plausible route to devise ‘open quantum systems’ and substantially reduce the issues associated with ‘decoherence’ in closed ‘quantum-optical’ systems. * Photonic Topological Insulators: The primary bottleneck in most of the optical signal processing and optical transmission circuits is ‘unwanted scattering’ which includes ‘backscattering’. ‘Topologically-protected’ modes in optics/photonics provide a potentially viable route to circumvent the undesirable impact of ‘backscattering’ of light. In this area of research, the group investigates a broad range of linear (photonic crystal based) and nonlinear optical systems for which the topological constants could be ascertained. Subsequently, the impact of perturbations and tolerance with regard to backscattering is investigated. This area of research also provides a plausible route to explore symmetry aspects of parametric (lossless) as well as non-parametric electromagnetic (optical as well as plasmonic) interactions.

Nonlinear Optics, Nanophotonics and Surface optics , Topological Photonics

• Soumik Nandi, Arannya Ghosh, Dinesh Beniwal, Abhishek Mondal, Ashok K. Mohapatra, and Ritwick Das, "All-optical Stern-Gerlach effect in a parity-time anti-symmetric nonlinear refractive medium," Opt. Express 33, 24237-24248 (2025)
• Bommakanti, Suresh, Satyapriya Nath, Rudrashish Panda, Sankalpa N. Panda, Jeebanjyoti Mohapatra, Adithyan Puthukkudi, Chetan V. Rajput, Sharmistha Anwar, Ritwick Das, and Bishnu P. Biswal. "Octupolar Cyclotriphosphazene-Cored Self-Standing Covalent Organic Framework Membranes as Nonlinear Optical Materials: Impact of Linkage Types and Material Forms." The Journal of Physical Chemistry Letters 15, no. 18 (2024): 4965-4975. .
• Murali, A. C., Panda, R., Kannan, R., Das, R., & Venkatasubbaiah, K. (2024). O, S-Chelated bis (pentafluorophenyl) boron and diphenylboron-β-thioketonates: synthesis, photophysical, electrochemical and NLO properties. Dalton Transactions, 53(42), 17263-17271.