Affiliation:
1. Tiandi (Changzhou) Automation Co., Ltd.
Abstract
A circular Airy array beam (CAAB) comprising four symmetric circular Airy beams is
proposed and demonstrated for image transmission. It is generated by
the Fourier transform of the combined phase, which contains the radial
cubic phase, the diffractive axicon phase, and the shift function
phase. Two adjustable parameters of the combined phase can control the
radius and the initial position of each circular Airy beam at the
spatial plane. The image can be modulated into the CAAB through
overlapping it at the Fourier plane of this beam and recovered by
Fourier transform after diffracting a certain distance. It can be
observed clearly that the CAAB after being partly blocked by a movable
obstacle guarantees the recovery of the image. In comparison with the
existing right-angle Airy array beam, the image transmission by the
proposed CAAB is less sensitive to the position of the obstacles on
the beam path.
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
2 articles.
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