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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Kerr-nonlinearity-modulated dressed vortex four-wave mixing from photonic band gap
Optics Express
|July 19, 2020
Summary
We demonstrated how light
Area of Science:
- Quantum optics
- Atomic physics
- Nonlinear optics
Background:
- Orbital angular momentum (OAM) of light can be transferred via light-matter interactions.
- Vortex beams carry OAM, influencing light-matter interactions.
- Photonic band gap structures can modify light propagation.
Purpose of the Study:
- To experimentally induce and investigate dressed vortex four-wave mixing (FWM).
- To explore the influence of light-matter interactions on vortex beam propagation.
- To understand the role of nonlinear phase and spiral phase interplay.
Main Methods:
- Utilizing a vortex probe beam and an inverted Y-type four-level atomic system.
- Implementing a photonic band gap to control light propagation.
- Analyzing Kerr-nonlinearity-modulated propagation behaviors of vortex beams.
Main Results:
- Successfully induced dressed vortex four-wave mixing (FWM).
- Observed spatial shift, splitting, and shape incompleteness in vortex beam propagation.
- Demonstrated that nonlinear and spiral phases interplay affects vortex beam behavior.
Conclusions:
- Vortex beam propagation is significantly influenced by nonlinear and spiral phase interactions.
- This research advances understanding of light-matter interactions with optical vortices.
- Potential applications in optical computing and information processing.
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