TL;DR
This paper explores the creation of bright and dark helices of light using laser beams, analyzing their formation constraints, and proposing methods for their application in lithography and particle manipulation.
Contribution
It introduces new scaling laws for bright and dark helices and demonstrates how to arrange dark helices in grids for parallel photo-lithography.
Findings
Bright helices are more constrained by optical resolution limits.
Derived scaling laws relevant for photo-lithography.
Proposed method for creating handed materials via dark helices.
Abstract
Laser beams can be made to form bright and dark intensity helices of light. Such helices have a pitch length on the order of a wavelength and may have applications in lithography and the manipulation of particles through optical forces. The formation of bright helices is more strongly constrained by optical resolution limits than that of dark helices, corresponding scaling laws are derived and their relevance for photo-lithography pointed out. It is shown how to arrange dark helices on a grid in massively parallel fashion in order to create handed materials using photo-lithographic techniques.
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