AI Article Synopsis
- Transverse scattering occurs perpendicular to the direction of wave propagation, sparking interest for applications in antennas, metrology, and sensing.
- This study reveals two types of transverse scattering—annular and unidirectional—achieved through the coupling of magnetoelectric Omega particles, with specific modes generating these effects.
- The findings also highlight how manipulating longitudinal and transverse electric/magnetic dipole modes can suppress forward and backward scattering, offering new ways to control light scattering and broaden the use of these particles.
Article Abstract
Transverse scattering is a special directional scattering perpendicular to the propagation direction, which has attracted great interest due to its potential applications from directional antennas, optical metrology to optical sensing. Here we reveal annular transverse scattering and unidirectional transverse scattering by magnetoelectric coupling of Omega particle. The annular transverse scattering can be achieved by the longitudinal dipole mode of the Omega particle. Furthermore, we demonstrate the highly asymmetric unidirectional transverse scattering by adjusting the transverse electric dipole (ED) and longitudinal magnetic dipole (MD) modes. Meanwhile, the forward scattering and backward scattering are suppressed by the interference of transverse ED and longitudinal MD modes. In particular, the lateral force exerted on the particle is accompanied by the transverse scattering. Our results provide a useful toolset for manipulating light scattered by the particle and broaden the application range of the particle with magnetoelectric coupling.
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| http://dx.doi.org/10.1364/OE.485916 | DOI Listing |
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