Rajan Chakrabarty

Rajan Chakrabarty

Associate Professor

Energy, Environmental & Chemical Engineering

  • Phone314-935-6054
  • OfficeBrauer Hall, Room 3025


PhD, University of Nevada–Reno, 2008
MS, University of Nevada–Reno, 2006
BS, University of Madras, 2003


Leads the Complex Aerosol Systems Research Laboratory


Aerosol Physics and Chemistry; Instrumentation; Radiative Transfer and Energy Balance; Satellite Remote Sensing of Aerosol; Gas Phase Synthesis of Aerogels; Optical spectroscopy; Air quality; Non-equilibrium particle dynamics; Stochastic processes


Professor Chakrabarty currently leads the Complex Aerosol Systems Research Laboratory at Washington University, which works at the forefront of addressing grand challenges associated with characterization, synthesis, granular-level modeling, radiative forcing estimation, and remote sensing of particulate matter existing in non-equilibrium conditions. Over the years, his research group has made technical contributions to aerosol science and technology focusing on the themes of:

  1. Addressing Grand Challenges Associated with Radiative Forcing by Carbonaceous Aerosols,
  2. Open-Source and User-Interactive Aerosol Physics Software Development,
  3. Advances in Fundamental Aerosol Physics, and
  4. Aerosol Instrumentation and Engineering Techniques.

Research advances in these four themes have a tremendous broader impact in the societally highly relevant research areas of atmospheric radiative forcing and climate change, satellite remote sensing, and governmental policy making (especially in developing countries).


Rajan Chakrabarty obtained his PhD in Chemical Physics from the University of Nevada, Reno with dissertation research conducted at the Desert Research Institute. He also holds degrees in Atmospheric Physics (MS) and Electronics and Instrumentation Engineering (B Eng.). His research contributions have been recognized with several prestigious honors, most notably the 2019 Schmauss award (GAeF), 2018 AGU Global Environmental Change Early Career award, the 2017 Richard M. Goody award by the electromagnetic light scattering and remote sensing community, and a 2015 NSF CAREER award. Chakrabarty has been an active member, including serving as the chair of the American Association for Aerosol Research (AAAR) Aerosol Physics working group since 2008. Between 2014 and 2017, he served as chair of the AAAR Education Committee for three consecutive years. He was one of the host organizers of the 2018 International Aerosol Conference, in charge of a number of activities from organizing tutorials to overseeing the day-to-day smooth functioning of the events.