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Non-reciprocity in the spin Hall effect based on multilayer magnetized plasma
Applied Optics
|March 10, 2021
Summary
This study explores non-reciprocity in the spin Hall effect of light (SHEL) using Fibonacci-layered magnetized plasma. Increased plasma frequency and light frequency enhance non-reciprocity, while more layers limit its advantages.
Area of Science:
- Optics and Photonics
- Condensed Matter Physics
Background:
- The spin Hall effect of light (SHEL) is a phenomenon where light beams with opposite spin angular momenta are spatially separated.
- Non-reciprocity in optical phenomena is crucial for developing advanced photonic devices like optical isolators.
Purpose of the Study:
- To investigate the non-reciprocal behavior in the spin Hall effect of light (SHEL).
- To explore the influence of Fibonacci-layered magnetized plasma structures on SHEL non-reciprocity.
Main Methods:
- Simulations were performed on a structure comprising glass, multilayer magnetized plasma (arranged in Fibonacci sequences), and air layers.
- The effect of plasma frequencies (ωA, ωB), incident light frequency (f), and the number of plasma layers on SHEL non-reciprocity was analyzed.
Main Results:
- Enhanced plasma frequencies (ωA, ωB) and incident light frequency (f) lead to more pronounced non-reciprocity in SHEL.
- Increasing the number of magnetized plasma layers was found to limit the advantages of non-reciprocity.
- Significant differences in horizontal displacement (δH) were observed between forward and backward incidence, with the third Fibonacci sequence showing a 6-fold greater difference than the fourth.
Conclusions:
- The study provides a deeper understanding of non-reciprocity in SHEL within Fibonacci-structured magnetized plasma.
- The findings suggest potential applications in the design of optical isolators and non-reciprocal sensors.
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