Microwave or radio-frequency controlled electromagnetically induced transparency (EIT) and related dispersion spectra in a pump-probe lasers driven multi-level Ξ …

A Das, JK Saha, MM Hossain - Optics Communications, 2022 - Elsevier
The optical responses of a pump-probe lasers driven six-level cascade (Ξ)-type system to
the probe field are studied in the present work. The six-level system considered to be formed …

Homodyne detection of a two-photon resonance assisted by cooperative emission

CS Madasu, CC Kwong, D Wilkowski, K Pandey - Physical Review A, 2022 - APS
Focusing on the transient regime, we explore atomic two-photon spectroscopy with self-
aligned homodyne interferometry in a Λ system with large optical depth. The two light …

Theoretical study of the control of absorption, transparency, and amplification in a microwave-and RF-driven four-level (Δ+∇)-type closed-contour interaction system

A Das, JK Saha, MM Hossain - Journal of Physics B: Atomic …, 2021 - iopscience.iop.org
This paper describes a theoretical study of the optical responses of an atomic medium to the
probe field in a four-level (Δ+∇)-type closed-contour interaction system driven by two pump …

Precursor propagation in inhomogeneous broadened media: experimental and numerical simulation

F Tommasi, E Ignesti, L Fini, S Cavalieri - Optics Letters, 2017 - opg.optica.org
We report experimental results on the propagation temporal characteristics of the precursor
in an inhomogeneous sample. The transient behavior of a step-like pulse in an atomic hot …