An optical system for producing a structured beam

0498123 - ÚFP 2020 RIV eng P - Patent Document
Šulc, Miroslav - Gayde, J.Ch.
An optical system for producing a structured beam.
2019. Owner: Ústav fyziky plazmatu AV ČR, v. v. i. (ÚFP). Date of the patent acceptance: 06.11.2019. Patent Number: EP3564734A1
R&D Projects: GA MŠMT(CZ) LO1206
Institutional support: RVO:61389021
Keywords : structured optical beam * non-diffractive Bessel beam * optical system
OECD category: Optics (including laser optics and quantum optics)
https://worldwide.espacenet.com/patent/search?q=pn%3DEP3564734A1

An optical system for producing a structured optical beam, the system comprising: a convex lens having a spherical or cylindrical entry surface, the 5 lens comprising a material having a refractive index of at least 1.6, an electromagnetic radiation source configured to provide a substantially coherent beam of electromagnetic radiation, wherein the source is arranged to illuminate the convex lens over a selected illumination fraction of the spherical or cylindrical entry surface and with 10 a corresponding selected focus of the illuminating beam such that the beam traverses a sufficient refractive volume of the convex lens to produce aberrations in the beam emerging from the convex lens such that it comprises a structured optical beam. The system and method allows for generating a structured beam which has the potential to propagate over the large distances while maintaining a 15 well-defined cross-section intensity distribution.
Permanent Link: http://hdl.handle.net/11104/0290534