Exchange of optical vortices using an electromagnetically-induced-transparency–based four-wave-mixing setup
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 …
electromagnetically induced transparency in a four-level double-Λ atom-light coupling …
Complete energy conversion between light beams carrying orbital angular momentum using coherent population trapping for a coherently driven double- atom-light …
We propose a procedure to achieve a complete energy conversion between laser pulses
carrying orbital angular momentum (OAM) in a cloud of cold atoms characterized by a …
carrying orbital angular momentum (OAM) in a cloud of cold atoms characterized by a …
Optical nonreciprocity and nonreciprocal photonic devices with directional four-wave mixing effect
A scheme for magnetic-free optical nonreciprocity in an ensemble of four-level cold atoms is
proposed by exploiting the directional four-wave mixing effect. Using experimentally …
proposed by exploiting the directional four-wave mixing effect. Using experimentally …
Large cross-phase modulations at the few-photon level
We demonstrate an efficient cross-phase modulation (XPM) based on a closed-loop double-
Λ system. The property of the double-Λ medium can be controlled by changing the phases of …
Λ system. The property of the double-Λ medium can be controlled by changing the phases of …
Experimental demonstration of spinor slow light
MJ Lee, J Ruseckas, CY Lee, V Kudriašov… - Nature …, 2014 - nature.com
Slow light based on the effect of electromagnetically induced transparency is of great
interest due to its applications in low-light-level nonlinear optics and quantum information …
interest due to its applications in low-light-level nonlinear optics and quantum information …
Optical nonreciprocity using four-wave mixing in hot atoms
Nonreciprocal optical devices are important in wide areas, ranging from optical
telecommunications to signal processing. Here, we experimentally realize the magnet-free …
telecommunications to signal processing. Here, we experimentally realize the magnet-free …
Observation of highly correlated ultrabright biphotons through increased atomic ensemble density in spontaneous four-wave mixing
The pairing ratio, a crucial metric assessing a biphoton source's ability to generate
correlated photon pairs, remains underexplored despite theoretical predictions. This study …
correlated photon pairs, remains underexplored despite theoretical predictions. This study …
High conversion efficiency in resonant four-wave mixing processes
We propose a new scheme of the resonant four-wave mixing (FWM) for the frequency up or
down conversion, which is more efficient than the commonly-used scheme of the non …
down conversion, which is more efficient than the commonly-used scheme of the non …
Optical-density enhanced quantum entanglement via four-wave mixing process
We theoretically propose a scheme to generate a strong continuous-variable quantum
entangled light source in four-wave mixing (FWM) process by increasing the optical density …
entangled light source in four-wave mixing (FWM) process by increasing the optical density …
Low-loss high-fidelity frequency beam splitter with tunable split ratio based on electromagnetically induced transparency
KF Chang, TP Wang, CY Chen, YH Chen, YS Wang… - Physical Review …, 2021 - APS
A frequency beam splitter (FBS) with the split ratio of 0.5, ie, 50/50 FBS, can be used as the
frequency-mode Hadamard gate for frequency-encoded photonic qubits. A FBS with the split …
frequency-mode Hadamard gate for frequency-encoded photonic qubits. A FBS with the split …