144 citations · 463 across the 25 of their papers we have counts for
25 papers
Subpicosecond dynamics of pre-plasma on a solid, formed by a ultra-high contrast, relativistic intensity pulse
Ankit Dulat, C. Aparajit, Anandam Choudhary +3
Using spectral interferometry technique, we measured subpicosecond time-resolved pre-plasma scale lengths and early expansion ( 12 ps) of the plasma produced by a high intensity…
Efficient second-harmonic generation of a high-energy, femtosecond laser pulse in a lithium triborate (LBO) crystal
C. Aparajit, Kamalesh Jana, Amit D. Lad +3
We demonstrate the highest efficiency (80%) second harmonic generation (SHG) of Joule level, 27 femtosecond, high contrast pulses in a type-I lithium triborate (LBO) crystal.…
Observation of ultrafast laser-plasma evolution by pump-probe reflectometry and Doppler spectrometry
Amitava Adak, Prashant Kumar Singh, Amit D. Lad +2
We demonstrate pump-probe techniques, namely the Doppler spectrometry and the reflectometry in detail, which directly capture the time-resolved ultrafast evolution of high intensit…
Generation of a strong reverse shock wave in the interaction of a high-contrast high-intensity femtosecond laser pulse with a silicon target
Kamalesh Jana, Amit D. Lad, Moniruzzaman Shaikh +6
We present ultrafast pump-probe reflectivity and Doppler spectrometry of a silicon target at relativistic laser intensity. We observe an unexpected rise in reflectivity to a peak a…
Absorption of High Intensity, High Contrast Femtosecond Laser Pulses by a Solid
Amitava Adak, Amit D. Lad, Moniruzzaman Shaikh +3
The basic understanding of high-intensity femtosecond laser absorption in a solid is crucial for high-energy-density science. This multidimensional problem has many variables like…
Magnetic field generation in finite beam plasma system
Amita Das, Atul Kumar, Chandrasekhar Shukla +7
For finite systems boundaries can introduce remarkable novel features. A well known example is the Casimir effect [1, 2] that is observed in quantum electrodynamic systems. In clas…