1 May 2014 Hermite-Gaussian beams with self-forming spiral phase distribution
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Spiral laser beams is a family of laser beams that preserve the structural stability up to scale and rotate with the propagation. Properties of spiral beams are of practical interest for laser technology, medicine and biotechnology. Researchers use a spiral beams for movement and manipulation of microparticles. Spiral beams have a complicated phase distribution in cross section. This paper describes the results of analytical and computer simulation of Hermite-Gaussian beams with self-forming spiral phase distribution. In the simulation used a laser beam consisting of the sum of the two modes HG TEMnm and TEMn1m1. The coefficients n1, n, m1, m were varied. Additional phase depending from the coefficients n, m, m1, n1 imposed on the resulting beam. As a result, formed the Hermite Gaussian beam phase distribution which takes the form of a spiral in the process of distribution. For modeling was used VirtualLab 5.0 (manufacturer LightTrans GmbH).
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Alexander A. Zinchik, Alexander A. Zinchik, Yana B. Muzychenko, Yana B. Muzychenko, "Hermite-Gaussian beams with self-forming spiral phase distribution", Proc. SPIE 9131, Optical Modelling and Design III, 913121 (1 May 2014); doi: 10.1117/12.2052664; https://doi.org/10.1117/12.2052664

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