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physics.optics2025★ 1 cited
A comparative study of focusing with scalar and vector beams in an active Raman gain system
Partha Das, Tarak Nath Dey
We investigate the focusing characteristics of scalar and vector beams within an atomic medium. An active-Raman-gain configuration is employed to achieve significant Kerr nonlinear…
physics.optics2024★ 3 cited
Linear and nonlinear propagation of cylindrical vector beam through a non-degenerate four level atomic system
Partha Das, Tarak Nath Dey
We investigate the phase-induced susceptibilities for both components of the probe vector beam (PVB) within an atomic system. The atoms are prepared in a non-degenerate four-level…
physics.optics2022
Pulse amplification in a closed loop system with permanent dipole moments
Nilamoni Daloi, Partha Das, Tarak Nath Dey
Propagation of a weak Gaussian probe pulse through a closed loop system with permanent dipole moments (PDMs) is investigated in presence of a strong control field along with a…