Dr. Arnab Laha is a Postdoctoral Research Fellow at the Singapore University of Technology and Design (SUTD), Singapore. He received his Ph.D. from the University of Calcutta, India, in 2021, conducting his doctoral research in collaboration with the Indian Institute of Technology (IIT) Jodhpur. Previously, he held postdoctoral positions at IIT Delhi, India, and Adam Mickiewicz University, Poland. His research interests span fundamental and applied photonics, with a particular emphasis on non-Hermitian and topological photonics, parity-time symmetry, exceptional points, and light–matter interactions. His work investigates unconventional optical phenomena, including topological state conversion, asymmetric mode switching, nonreciprocal light propagation, and resonance engineering in optical microcavities and waveguides, with potential applications in advanced photonic technologies. He has published research articles in leading international journals, including ACS Photonics, Physical Review A, Physical Review B, Physical Review Research, Physical Review Applied, and Optics Letters. He also actively contributes to the scientific community through peer review, collaborative research, and student mentorship.