Abstract
Orbital angular momentum (OAM) hologram is used to generate and combine arbitrary structural light arrays (SLAs). The OAM hologram can convert incident structural light into an arbitrary SLA, where the sub beams retain the same spatial structure as the incident light. Additionally, the hologram can combine an incident SLA, with sub beams carrying either identical or different spatial structures, into a single structure beam with complex spatial structure. Theoretical and experimental results demonstrated the flexibility of OAM hologram in generating and combining arbitrary SLAs. We believe that the OAM hologram is of wide potential in optical-matter interaction, optical communication, and optical tweezers.
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