Logo image
Back
Creation of diffraction-limited non-Airy multifocal arrays using a spatially shifted vortex beam
Journal article   Open access   Peer reviewed

Creation of diffraction-limited non-Airy multifocal arrays using a spatially shifted vortex beam

Han Lin and Min Gu
Applied physics letters, v 102(8), p84103
25 Feb 2013
DOI: https://doi.org/10.1063/1.4794030
url
http://hdl.handle.net/1959.3/314445View
Published, Version of Record (VoR)Open Access (License Unspecified),  Open

Abstract

Physical Sciences Physics Physics, Applied Science & Technology
Diffraction-limited non-Airy multifocal arrays are created by focusing a phase-modulated vortex beam through a high numerical-aperture objective. The modulated phase at the back aperture of the objective resulting from the superposition of two concentric phase-modulated vortex beams allows for the generation of a multifocal array of cylindrically polarized non-Airy patterns. Furthermore, we shift the spatial positions of the phase vortices to manipulate the intensity distribution at each focal spot, leading to the creation of a multifocal array of split-ring patterns. Our method is experimentally validated by generating the predicted phase modulation through a spatial light modulator. Consequently, the spatially shifted circularly polarized vortex beam adopted in a dynamic laser direct writing system facilitates the fabrication of a split-ring microstructure array in a polymer material by a single exposure of a femtosecond laser beam. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794030]

Metrics

15 Record Views
44 citations in Web of Science
46 citations in Scopus

Details

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Web of Science research areas
Physics, Applied
Logo image