Akhilesh Kumar Pathak received an M.Sc. degree in non-linear optics as a specialization from the University of Allahabad, India, in 2012, and a Ph.D. degree in fiber optics from the Indian Institute of Technology (Indian School of Mines), Dhanbad, India, in 2019. He is working as a postdoctoral scholar at the Northwestern University, USA. His research interests include optical fiber modeling using the full vectorial finite element method (FV-FEM), laser densification, and direct laser writing using femtosecond laser, synthesis, and controlled growth of nanoparticles, hydrogels, and specialized optically active material for various sensing applications. He is also a Senior Member of top societies, including IEEE, OPTICA, and the Indian Laser Association.