Dr. Devarajan Alagarasan is working as post-doctoral research associate on the preparation of nanomaterials and chalcogenides for fabrication of optoelectronic devices like sensor, solar cells and linear/ non-linear optics at the department of physics, Indian Institute of Science, Bangalore, India. He has completed his PhD in (2012-2017) at the Central University, Pondicherry, India. Then Since 2017 to present , He has been working in IISC. His research interests are in preparation of nanomaterials and chalcogenides for the applications in photo sensor and solar cells, linear and nonlinear optics also working in nanotextiles for biomedical applications.