Vortex Lenses

The vortex lens, which is also known as a spiral or vortex phase plate, reshapes a Gaussian laser beam profile to a doughnut shaped beam profile. Most important properties of a vortex lens are: accordance to the wavelength, topological charge and amout of steps. Our vortex lenses show a very small deviation from the theoretical height (usually ± 2nm), which leads to a high correspondence with the applicable laser wavelength. The topological charge effects the orbital momentum of the resulting doughnut beam. Starting with the topological charge m=1, we plan to cover topological charges in a range of 1 to 10. A higher amount of steps of a vortex lens result in a darker center region of the doughnut beam, this parameter is crucial for several applications of the vortex lens, such as STED and optical manipulations. Our vortex lenses posess 64 steps and we plan to build stepless lenses in near future.

real image doughnut laser beam vortex photonics small

Resulting laser beam profile after a vortex lens

PN Image Size λ m Material Coating Order

10 mm aperture

V-415-10 vortex lens image vortex photonics

11x11x2.5 mm

415 nm

2,3,4,6,8

fused silica

no coating

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V-532-10 vortex lens image vortex photonics

11x11x2.5 mm

532 nm

1 to 4

fused silica

no coating

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V-775-10 vortex lens image vortex photonics

11x11x2.5 mm

775 nm

1 to 4

fused silica

no coating

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V-800-10 vortex lens image vortex photonics

11x11x2.5 mm

800 nm

1 to 4

fused silica

no coating

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20 mm aperture

V-415-20 vortex lens image vortex photonics

22x22x2.5 mm

415 nm

2,4,8

fused silica

no coating

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V-800-20 vortex lens image vortex photonics

22x22x2.5 mm

800 nm

1,2,4

fused silica

no coating

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Further Information

Please contact vortex photonics on info@vortex-photonics.de.