Associate Professor in the Department of Physics, Cochin University of Science & Technology (2019 - ); Visiting Fellow (1998-1999):at the Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai where the thrust area of research RCI was involved in was the development of x-ray sources of sub-picosecond duration suitable for phase contrast imaging of biological samples. University of Strathclyde (2000-2011), Glasgow, UK: Lead role in the design and construction of a 10 meters long laser wakefield MeV electron accelerator beamline and the vacuum delivery system for TW femtosecond laser pulse. Developed ultrashort VUV, x- and gamma- ray sources for imaging applications using TW laser system at Strathclyde and Petawatt laser system at Rutherford Appleton Laboratory, Didcot, London. Studied ultrashort MeV electron beam interaction with malignant tissue to help treatment of cancer. Has more than 60 international publications, an H-index of 25.

Femtosecond (Ultrafast) lasers, Laser Produced plasmas, Laser-derived VUV to X ray and High-harmonic sources , Photonic structures., Pump-probe methods with sub-picosecond temporal resolution, Two-photon polymerized direct laser 3D printing

Scopus	:	Author ID: 7003604905
Google Scholar	:	https://scholar.google.com/citations?hl=en&user=5b9i2ioAAAAJ

Optical diagnostics of laser-produced plasmas, Reviews of Modern Physics, American Physics Society Vol. 94, 2022

Amplified spontaneous emission from ZnO nanostructures as scatterers in rhodamine 6G, IOP Conference Series: Materials Science and Engineering, IOP Publishing Vol. 1233, 2022

Chirped pulse Raman amplification in warm plasma: towards controlling saturation, Nature Scientific Reports , Vol. 5, 2015

An ultrashort pulse ultra-violet radiation undulator source driven by a laser plasma wakefield accelerator, Applied Physics Letters, American Institute of Physics Vol. 104, 2014

Plasma density measurements using chirped pulse broad-band Raman amplification, Applied Physics Letters, Vol. 103, 2013

Linearly tapered discharge capillary waveguides as a medium for a laser plasma wakefield accelerator, Applied Physics Letters, Americal Institute of Physics Vol. 100, 2012

Gamma-Rays from Harmonically Resonant Betatron Oscillations in a Plasma Wake, Nature Physics, Nature Publishing Vol. 7, 2011

Chirped pulse Raman amplification in plasma, New Journal of Physics, Vol. 13, 2011

Low emittance, high brilliance relativistic electron beams from a laser-plasma accelerator, Physical Review Letters, American Physical Society Vol. 105, 2010

Pulse Duration Dependancy of Femtosecond Laser Refractive Index Modifications in Poly(Methyl Methacrylate), Optics Letters, Optica Publishing Group Vol. 33, 2008

RESEARCH PROJECTS

"Ultrafast Laser beamlines for multidisciplinary, multitasking research programmes" (Kerala State Higher Education Council, Chancellor's Award 2019- 2021 -2024 , Total outlay Rs.40000000)