PhD (Indian Institute of Technology Madras)
Research Interests: Atomic and Molecular Physics, Atomic Magnetometry, Nonlinear-Optics
Professor Raghwinder Singh Grewal is an Assistant Professor in the Mathematical and Physical Sciences division of the School of Arts and Sciences at Ahmedabad University. He received his MSc and PhD from the Department of Physics, Indian Institute of Technology (IIT) Madras. During his PhD, he investigated the Hanle resonances in degenerate two-level atomic systems. He was awarded a pre-doctoral fellowship by IIT Madras for submitting his PhD thesis within four years. Upon completion of the doctorate, he joined Jagiellonian University, Krakow (Poland) as a post-doctoral fellow where he worked on the transient dynamics of nonlinear magneto-optical rotation (NMOR) and its dependence on the transverse magnetic fields. In his second post-doctoral stint at the Physical Research Laboratory, Ahmedabad, his work was focused on simultaneous generation of one- and two-dimensional Airy beams and studying their second harmonic characteristics. He received international travel support (ITS) from SERB-DST during his time at the Physical Research Laboratory.
Prior to joining Ahmedabad University, Professor Grewal worked at Delaware State University, Dover, USA as a post-doctoral research associate, where he developed a new technique to generate magnetic resonances with synchronous modulation of two laser fields, which would be useful for remote sensing of geomagnetic fields using mesospheric sodium atoms.
Professor Grewal’s research interest lies in the area of atomic and molecular physics, optics (structured beams) and second-order nonlinear process. Particularly, his research work is focused on studying the light-induced coherent phenomena such as electromagnetically induced transparency (EIT) and electromagnetically induced absorption (EIA), nonlinear magneto-optical rotation (NMOR) and their applications in optical atomic magnetometry. These studies are performed using the continuous-wave (CW) and modulated laser fields.