Terahertz (THz) enjoys advantages in molecular sensing and bio-imaging, since the radiation is reported to be non-ionizing. From a component DFT (design, fabrication, test) perspective, THz band may be approached either from RF/Microwave (GHz) or from UV-VIS-IR (PHz) bands. The test facilities for THz (also sub-THz, far-IR) are highly specialized and access is limited. There are gaps in 2-D/3-D fabrication at the 100um range, which are closing due to advancements in laser scribing and CNC machining. Presently, work is focused on (i) frequency selective surfaces (FSS), (ii) high Q resonators as sensors, and (iii) high resistivity, anti-reflective coatings for efficient THz conversion. Novel materials (ferrite nano-particles), micro-fluidics (nano-ink), and flexible substrate (polyimide) processes hold promise in applications such as steerable pencil beam for non-destructive testing (NDT). Joint work with: Dr A Pattanayak, Dr G Rana, Dr C Mathai, Dr A Ibrahim (IITB PhD graduates), M Arya, UB Memon, VV Nair, DB Chemate (IITB PhD scholars), Dr SS Prabhu and Dr VG Achanta (TIFR), Dr MN Gandhi (IITB), Dr GJ Phatak (CMET-Pune), Dr R Pinto (AIET-Mangaluru)
Siddhartha Prakash Duttagupta obtained BTech (Honours) from IIT Kharagpur and PhD from the University of Rochester. The research domains are primarily in micro/nano-fabricated devices and integrated electronic systems. During 2014-2021, results have been disseminated via forty-four journal publications, five US patents (2020, 2018) and five Indian patents (2020, 2019, 2018, 2016). The generous sponsorship UK-RI, US-AOARD, DRDO, DBT, Nipro-Japan, and TCS is acknowledged.