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Light-Matter Interaction (Theory & Experimental)

This group is involved in the theoretical and experimental study of light-matter interaction in quantum regime and in macroscopic systems. 

Theoretical research in Dr.Shaji's research group range from understanding the fundamental and practical limits of measurement precision in quantum metrology to the study of quantum dynamics and understanding non-classical correlations in quantum states. 

Experimental research in this group is geared towards understanding the interaction at the fundamental level (e.g. photon-phonon interaction and interaction at surfaces and interfaces) and exploiting the knowledge to build real-world devices. 

The group conducts experimental study on 
  • Optical and electronic properties of surfaces and interfaces, surface plasmons (Dr.Mitra), 

  • Small molecules and nanoparticles for making organic solar cells and study of bulk heterojunction devices (Dr.Namboothiry),

  • Ultrafast optical studies of semiconductor nanostructures and THz spectroscopy (Dr.Kini), and

  • Nonlinear optics and photon-phonon interaction (Dr.Pant).

  • Surface-enhanced Raman scattering studies of biologically molecules absorbed on metal nanoparticles (Prof.Ramakrishnan)

  • Photophysical properties of fluorophores in binary mixtures & on semiconductor nanoparticles (Prof.Ramakrishnan)

  • Molecular Complexation & Host-guest interactions (Prof.Ramakrishnan)


Facilities:

The group is equipped with the state-of-the-art facilities such as 
  • Atomic Force Microscope (AFM), 

  • Scanning Tunneling Microscope (STM),

  • Femtosecond Ti:Sapphire laser capable of producing ~ 100fs pulses, pump-probe spectrometer,

  • DFB lasers,

  • Vector Network Analyser.
The group also has the capability to fabricate devices and develop materials.