| Autor: |
Sara M. Kandil, Dia’aaldin J. Bisharat, Daniel F. Sievenpiper |
| Rok vydání: |
2021 |
| Předmět: |
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| DOI: |
10.48550/arxiv.2109.10314 |
| Popis: |
The ability to control the directionality of surface waves by manipulating its polarization has been of great significance for applications in spintronics and polarization-based optics. Surface waves with evanescent tails are found to possess an inherent in-plane transverse spin which is dependent on the propagation direction while an out-of-plane transverse spin does not naturally occur for surface waves and requires a specific surface design. Here, we introduce a new type of surface waves called chiral surface wave which has two transverse spins, an in-plane one that is inherent to any surface wave and an out-of-plane spin which is enforced by the design due to strong x-to-y coupling and broken rotational symmetry. The two transverse spins are locked to the momentum. Our study opens a new direction for metasurface designs with enhanced and controlled spin-orbit interaction by adding an extra degree of freedom to control the propagation direction as well as the transverse spin of surface waves. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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