Recently a scheme has been proposed for detection of the structured light by measuring the
transmission of a vortex beam through a cloud of cold rubidium atoms with energy levels of …

We propose a scheme to exchange optical vortices of slow light using the phenomenon of
electromagnetically induced transparency in a four-level double-Λ atom-light coupling …

We propose that a coherently prepared four-level atomic medium can provide a versatile
platform for realizing parity-time (PT) symmetric optical potentials. Different types of PT …

The self-Kerr-nonlinearity of a four-level N-type atomic system is studied both experimentally
and theoretically. The self-Kerr-nonlinear coefficient n 2 of the probe beam is greatly …

Singularities which symbolize abrupt changes and exhibit extraordinary behavior are of a
broad interest. We experimentally study optomechanically induced singularities in a …

We propose a model for optical switching in a closed-loop three-level lambda atomic system
excited by two optical fields, coupling and probe lights, and by a microwave-driven field. A …

In this paper, we study the effect of detuning parameters and driven external classical field
parameters on a quantum system consisting of a♢-configuration four-level atom inside a …

We present a theoretical investigation of the photon drag by incorporating self-Kerr
nonlinearity (SKN) in a Sagnac interferometer featuring a four-level atomic system. By …

We proposed a model for all-optical switching in a medium consisting of four-level vee-
cascade atomic systems excited by coupling, probe, and signal fields. It is shown that, by …

Correlated two‐photon scattering in a waveguide quantum electrodynamics system
consisting of a four‐level NN‐type emitter (4LE) sidely coupled to a one‐dimensional (1D) …