Welcome to the Multidimensional Spectroscopy & Imaging LABoratory 

MuSIG@iisc

who we are

We are an interdisciplinary group of physicists and physical chemists who work at the interface of experiment and theory. 

We like playing with ultrafast optical components, electronics and femtosecond laser pulses in a dark optics lab. We also like to play with toy model Hamiltonians on a computer to understand our experiments through analytic theory and computation. Alongside answering fundamental questions, we also leverage our expertise in optics and electronics to invent applied optical devices for sensing and imaging applications. 

Visit our publications page to learn more about our research.

questions that excite us

What fundamental electronic-vibrational properties make a material novel in terms of its ability to efficiently harvest energy or charge ? 

Our group develops advanced spectroscopic techniques and quantum dynamical models to probe questions such as how does an exciton dissociate to yield charge carriers, why is this yield efficient in certain materials versus poor in others, why do natural photosynthetic proteins have near unity quantum efficiency of charge carrier generation, can slow nuclei and fast electrons couple to enhance energy and charge transfer, can quantum coherences promote this phenomenon, can natural photosynthesis guide the design of new photovoltaics with improved charge generation, etc. 

Visit our publications page to learn more about such questions and our recent insights, and our current systems of interest.

research theme

Discovering new phenomenon to refine existing theoretical models necessarily requires inventing experiments that surpass the state-of-the-art

We strive to gain a fundamental understanding of the quantum dynamics of energy and charge transport in emerging energy harvesting and storage technologies. Such technologies depend on materials such as organic polymers and singlet fission materials, inorganic perovskites, quantum dots and layered 2D materials. Femtosecond timescales are the natural scales to probe the initial steps of energy and charge transfer phenomena that eventually govern the performance of these technologies. 

Typically all projects in our group involve both, experimental and theoretical components. Visit our research page or directly contact us to know more about our current research directions.