157 citations · 160 across the 6 of their papers we have counts for
6 papers
Effect of laser polarization on atomic and ionic emission in laser induced breakdown spectroscopy (LIBS)
U. K. Adarsh, V. K. Unnikrishnan, Parinda Vasa +3
Laser induced breakdown spectroscopy (LIBS) has become a proven contemporary workhorse for qualitative and quantitative analysis of materials. Recent developments in LIBS have been…
Ionization of Xe in intense, two-cycle laser fields: Dependence on carrier-envelope phase
Parinda Vasa, Aditya K. Dharmadhikari, Jayashree A. Dharmadhikari +1
We report on tunnel ionization of Xe by 2-cycle, intense, infrared laser pulses and its dependence on carrier-envelope-phase (CEP). At low values of optical field (), the ioniza…
Investigations of temperature-dependent photoluminescence of uncoated and silver-coated CdS quantum dots
P. Ghosh, D. Kushavah, P. K. Mohapatra +3
We report temperature-dependent photoluminescence (PL) studies and PL relaxation dynamics for uncoated and silver-coated CdS quantum dots (QDs). Room-temperature photoluminescence…
Observation of four-photon absorption and determination of corresponding nonlinearities in CdS quantum dots
P. Ghosh, E. Ramya, P. K. Mohapatra +5
Bound- and excited-state electronic nonlinearities in CdS quantum dots have been investigated by Degenerate Four-Wave Mixing (DFWM) and Z-scan techniques in the femtosecond time re…
Size-enhanced, coherent photoluminescence from CdS-ZnO nanocomposite thin film
Pushan Ayyub, Parinda Vasa, Praveen Taneja +2
We show that the photoluminescence emitted from a dense, two-component ensemble of quantum dots is significantly higher than that from quantum dots of either of the two pure system…
Size dependence of the Tc and the superconducting energy gap in nanocrystalline thin films of Nb
Sangita Bose, Pratap Raychaudhuri, Rajarshi Banerjee +2
In nanocrystalline Nb films, the superconducting Tc decreases with a reduction in the average particle size below 20nm. We correlate the decrease in Tc with a reduction in the supe…