AUTHOR=Wang Zhaoyang , Long Ruilin , Wan Zhensong , Shi Zijian , Liu Xinjie , Liu Qiang , Fu Xing TITLE=Transverse Traveling-Wave and Standing-Wave Ray-Wave Geometric Beams JOURNAL=Frontiers in Photonics VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/photonics/articles/10.3389/fphot.2022.855214 DOI=10.3389/fphot.2022.855214 ISSN=2673-6853 ABSTRACT=

Ray-wave geometric beam is an exotic kind of structured light with ray-wave duality and coupled diverse degrees of freedom (DoFs), which has attracted intense attention due to its potential applications in theories and applications. This work offers a new insight that the traditional ray-wave geometric beams can be seen as the transverse standing-wave (SW) beams, and can be decomposed into the superposition of transverse traveling-wave (TW) beams. We construct a generalized model for transverse TW and SW ray-wave geometric beams in the wave picture. In experiment, we exploit a digital hologram system with more flexible tunable DoFs to generate the transverse TW and SW beams, inspiring the exploration for the spatial wave structure of more complex structured light.