Controlling the Abrupt Autofocusing of Circular Airy Vortex Beam via Uniaxial Crystal
نویسندگان
چکیده
The propagation of many kinds structured light beams in uniaxial crystal has been investigated. However, the investigation evolution these after is lacking. In this paper, an formula a beam passing through derived. Based on formula, controlling autofocusing circular Airy vortex (CAVB) via studied. It found that can prolong focal length autofocusing. By changing length, relative weight left- and right-hand polarization components value between orbital spin angular momentum densities beam’s plane be adjusted flexibly. addition, other optical elements inserted focus to further adjust field distribution. influences inserting x- y-polarization polarizers intensity distribution are calculated as examples.
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ژورنال
عنوان ژورنال: Photonics
سال: 2022
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics9120943