In this study, an effective approach for generating polygonal non-diffracting beams (PNDBs) is demonstrated using optical caustics and cross-phases. The resulting structured light beams display a polygonal transverse structure and exhibit a significant intensity gradient and phase gradient. Diverse PNDBs can be generated by flexibly controlling the exponent factor of the cross-phases. The experimental results show that this beam has excellent non-diffracting properties and could stably capture and manipulate particles to move along polygonal trajectories. Furthermore, by adjusting the conversion rate parameter of the cross-phase, PNDBs can manipulate the motion state of the trapped particles, such as start and stop. These various PNDBs may be useful for potential applications as optical tweezers and in micromachining.
Open Access
HOLOEYE Photonics AG
Volmerstrasse 1
12489 Berlin, Germany
Phone: +49 (0)30 4036 9380
Fax: +49 (0)30 4036 938 99
contact@holoeye.com
© 2023 HOLOEYE Photonics AG