| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7929038 | Optics Communications | 2015 | 7 Pages |
Abstract
Tight focusing of a linearly polarized asymmetric Bessel beam, which has a topological charge n=3 and a crescent shape, was investigated numerically and experimentally. Using the Debye formulae, it was shown that the aplanatic lens of numerical aperture NA=0.9 forms a crescent in the focal plane. Experimentally, an asymmetric Bessel beam was formed by a spatial light modulator and focused by an immersive lens (NA=1.25). The crescent was also formed in the focal plane.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Victor V. Kotlyar, Sergey S. Stafeev, Alexey P. Porfirev,