My research focuses broadly on ultrashort laser pulse–matter interactions and their applications. At IIT Kharagpur, our research aims to advance the fundamental understanding of ultrafast photocurrent generation and control in emerging low-dimensional materials, to enable next-generation light-driven applications. By integrating structured light fields with quantum interference control, we investigate how tailored light–matter interactions can generate and manipulate ultrafast photocurrents with high efficiency and precision. Combining these approaches with state-of-the-art ultrafast spectroscopy and high-sensitivity photocurrent measurements provides a versatile platform for probing electronic and optoelectronic properties with exceptional spatial and temporal resolution. The findings will guide the design of advanced optoelectronic devices, with applications in THz technologies, ultrafast spintronics, high-speed communication, ultrafast electronics, and quantum technologies.

We are interested in pursuing the following research directions:

• Controlling efficient ultrafast photocurrents: Developing efficient and tunable strategies to manipulate light-induced photocurrents in low-dimensional materials, including two-dimensional semiconductors, semiconductor nanowires, and layered heterostructures.
  Advancing the Photocurrent-Based Ultrafast Methodologies: Establishing coherently controlled photocurrents as a powerful spectroscopic tool to reveal carrier scattering, electronic coherence, interlayer coupling, and nonequilibrium charge dynamics in two-dimensional materials and their heterostructures.
  Harnessing light-driven technologies: Translating coherent current control into functional optoelectronic and photonic applications, including structured THz emitters, enhanced tailored transient magnetic-field generation, and pathways toward ultrafast electronics.