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Observation of Photon Droplets and Their Dynamics
Kali E Wilson1, Niclas Westerberg1, Manuel Valiente1
1Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom.
Physical Review Letters
|October 13, 2018
Summary
We experimentally demonstrate photon droplets, self-bound light states in focusing nonlocal nonlinear media. These robust states arise from competing nonlinear forces and diffraction, with dynamics including orbital angular momentum changes.
Area of Science:
- Nonlinear optics
- Quantum optics
- Photonics
Background:
- Photon droplets are self-bound light states in nonlinear media.
- Their stability arises from a balance between attractive and repulsive forces.
- Theoretical models explain their formation via nonlinear terms and diffraction.
Purpose of the Study:
- To provide experimental evidence for photon droplet existence.
- To investigate the dynamics of photon droplets, including orbital angular momentum.
- To validate theoretical frameworks for photon droplet formation.
Main Methods:
- Experimental generation and observation of photon droplets.
- Numerical simulations of droplet dynamics.
- Measurement of photon droplet orbital angular momentum evolution.
Main Results:
- Experimental confirmation of photon droplet states in attractive nonlocal nonlinear media.
- Observation of both stationary and excited state dynamics.
- Measurements showing the evolution of orbital angular momentum in photon droplets.
Conclusions:
- Experimental evidence supports the theoretical framework of photon droplets.
- Photon droplets exhibit robust self-bound states and complex dynamics.
- The study advances understanding of light localization in nonlinear media.
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