I have expertise in the study of light-matter interactions in materials. I develop optical techniques using lasers to study fundamental processes like energy transfer, relaxation, charge-lattice and spin-lattice interactions.
The fundamental idea is that when light energy gets absorbed by a material, it converts into free charges, spin and lattice vibrations. What happens next? How to control their interactions on fast timescales, for useful applications ranging from solar cells, light emitters to spin memory devices.
When looking at fast timescales and nano length scales, I also look at what role quantum coherence and entanglement plays in the evolution of the light-matter interaction.
I am a Researcher at the Division of Chemical Physics, Lund University.
NEWS
15 July 2025 New Preprint
Can lattice vibrations carry angular momentum? Theory says yes, when ions can vibrate elliptically in a uniform fashion. Then the vibrating lattice looks different depending on what direction you look at it (a symmetry is broken). Here we report an exciting experimental observation of what could be a 'chiral' lattice vibration mode in a 2D metal halide that was recently proposed theoretically.
26 June 2025 Conference Presentation
I presented a poster at the 16th Femtochemistry conference in Trieste, Italy. I presented my work on strong charge-lattice interactions in a golden perovskite material.
A lead-free gold perovskite material is found to have intriguing coupled electronic and vibrational dynamics. Large electron-phonon coupling, pronounced coherent Au-Br bond vibrational modes and a lattice relaxation of charges is explained in this work!