Robuta

https://stars.library.ucf.edu/scopus2010/5781/ "Diffraction Resisting Zero-Order Bessel-Like And Higher-Order Vortex B" by Nikolaos K. Efremidis,... By Nikolaos K. Efremidis, Ioannis D. Chremmos, Juanying Zhao, et al., Published on 12/01/13