Transformation optics/electromagnetics (TO/TE) and its applications in designing complex media and arbitrary geometry conformal antennas and optical devices, Metamaterials, RF VLSI for IoT devices, Electronically tunable materials using conductive particles, 3D-printed antennas and RF circuits for conformal arrays, 3D-printed Flexible and Wearable Electronics for Embedded Systems, and Radio frequency integrated circuits (RFICs) for UAVs/UASs.
D. Mitra, S. Dev, M. Allen, J. Allen and B. D. Braaten, "Coordinate Transformation-based Antenna Elements Embedded in a Metamaterial with Scanning Capabilities," Electronics: Special issue on Metamaterials and Metasurfaces, vol. 10, no. 9, article 1081, May 2021.
S. Hazra, N. Kale, G. Aland, B. Qayyumi, D. Mitra, L. Jiang, D. Bajwa, J. Khandare, P. Chaturvedi, and M. Quadir, “Cellulose Mediated Transferrin Nanocages for Enumeration of Circulating Tumor Cells for Head and Neck Cancer,” Scientific Reports10, 10010 (2020) (Nature Publishing Group).
D. Mitra, S. B. Hamidi, P. Roy, C. Biswas, A. Biswas and D. Dawn, "Radio frequency reliability studies of CMOS RF integrated circuits for ultra-thin flexible packages," in Electronics Letters, vol. 56, no. 6, pp. 280-282, 17 3 2020. (Featured as “thinly sliced” in the IET Electronics Letter, Volume 56 Issue 06, March 17, 2020, page 265)