Research Projects

Intense lasers carry immense energy. An efficient coupling of this energy is desirable in the context of many applications like fusion etc. Through previous research grants (e.g. JCB and CRG projects) we have identified novel mechanisms of enhanced laser coupling using magnetized plasma targets. Our work has identified the niche domain of laser interacting with magnetized plasmas, which has opened up new research directions. Some of which we wish to explore through this project. Our preliminary investigations have given indication that laser pulses can be focused with the help of shaped finite-sized plasma target in the presence of a tailored spatial profile of the magnetic field. In this proposal thus we aim to explore advanced plasma optics by leveraging both plasma shaping and appropriate choice of magnetic field profiles. This would help in providing a solution for high-intensity lasers to operate beyond the damage threshold of conventional optical components. Additionally, we wish to explore the physics of the irreversible transfer of energy and its thermalization in plasma. For increased efficiency of irreversible coupling and thermalization, we plan to utilize the repeated collisions of surface and bulk waves generated by laser in a finite-sized plasma target. Beyond scientific exploration, this proposal also emphasizes manpower training and outreach. The International Advisory Committee (IAC) has endorsed our initiative to host the International Congress of Plasma Physics (ICPP) in India in 2026. This will also be important in strengthening global collaboration. The establishment of high-power laser facilities – such as the 10 PW in the Extreme Laser Infrastructure (ELI) laboratory in Europe and PW laser systems at RRCAT and the upcoming one at TIFR Hyderabad in India will provide ideal platforms for experimental validation of our findings. These facilities will drive cutting-edge research in areas like imaging, material processing, Fusion, particle acceleration and medical applications, magnetic field generation, etc., while also addressing fundamental questions related to laboratory astrophysics and the early universe. Our trained personnel will be a valuable asset to these initiatives, contributing to the advancement of laser plasma research and its wide-ranging applications.