Vector solitons in nonlocal optical media with pseudo spin-orbit-coupling.

Area of Science:

• Nonlinear Optics
• Soliton Physics
• Quantum Optics

Background:

• Vector solitons are fundamental in nonlinear optics.
• Spin-orbit coupling (SOC) influences light propagation.
• Nonlocal nonlinear media affect light beam interactions.

Purpose of the Study:

• Investigate the existence and stability of nonlocal vector solitons.
• Explore the role of pseudo spin-orbit-coupling (SOC) in soliton formation.
• Characterize different types of vector soliton solutions.

Main Methods:

• Numerical simulations were employed.
• A framework using copropagating beams with orthogonal polarizations and opposite transverse wave vectors was utilized.
• The study was conducted in nonlocal optical media.

Main Results:

• Two distinct types of vector soliton solutions were identified: centrally symmetric and non-centrally symmetric.
• Soliton existence is dependent on the effective SOC strength.
• Solitons were found to exist below a specific threshold of effective SOC strength.

Conclusions:

• Nonlocal vector solitons with pseudo SOC are numerically viable.
• The stability and existence of these solitons are governed by the SOC strength.
• Pseudo SOC offers a new pathway for controlling vector soliton dynamics.