Efficient orbital angular momentum vortex beam generation by generalized coding metasurface
Source abstract
Abstract
A method to efficiently generate orbital angular momentum (OAM) vortex beam is proposed by introducing generalized coding metasurface (CM). Firstly, a linearly polarized (LP) cross-polarization transmission unit cell is employed as the coding element. Then, the generalized CM composed of sectorial coding elements can be considered as a bridge linking mode number of OAM and beam divergence with coding sequences. Different mode numbers OAM is generated by CMs with different coding sequences under y-polarized wave normal incidence. Both theoretical analysis and simulated results reveal that the proposed CM can achieve flexible control of the OAM vortex beam.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Orbital Angular Momentum in Optics · Metamaterials and Metasurfaces Applications · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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