Ultrafast Terahertz Spectroscopy and Photonics (UTSP) Lab

Ultrafast Terahertz Spectroscopy and Photonics (UTSP) Lab

Research theme

Ultrafast Terahertz Spectroscopy and Photonics (UTSP) lab at JNCASR, is primarily interested in unveiling the fundamental properties of emerging quantum materials using ultrafast terahertz spectroscopy. Interrogating the quantum materials using ultrafast spectroscopy techniques offers unique observables and capabilities to address some of the most pressing challenges in quantum materials. This spans from gaining a fundamental understanding of light–electron, and light–spin interactions to unveiling hidden orders in equilibrium or excited states through unconventional light–matter interactions. Particularly, terahertz (THz) light, due to its low photon energy (a few electron volts) and sub-picosecond time resolutions can interact resonantly or non-resonantly with various degrees of freedom, driving many-body phenomena. This capability allows us to separate spin, charge, orbital, and phonon degrees of freedom, which in equilibrium are locked together.