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- W2891903691 abstract "Laser beams structured to have a uniform peak intensity profile ( at-top) have become ubiquitous and a topic of research interest in many fields. These beams can be digitally generated using spatial light modulators (SLMs) where an input Gaussian beam is transformed into a at-top at the focal plane of a focusing lens. However, the resulting uniform peak intensity distribution degrades while the beam propagates in space. Here, we present theoretical simulations and demonstrate experimentally the creation of propagation invariant vector at-top beams. We achieve this by coaxial superposition of a Gaussian and a donut beam with orthogonal polarization states. The polarization state of the generated vector at-top beam is characterized using spatially resolved stokes measurements and compared to theoretical simulations. Such beams will be of great impact in the fields of material processing and optical trapping." @default.
- W2891903691 created "2018-09-27" @default.
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- W2891903691 date "2018-09-14" @default.
- W2891903691 modified "2023-10-14" @default.
- W2891903691 title "Generation of propagation invariant vector flat-top beams" @default.
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- W2891903691 doi "https://doi.org/10.1117/12.2320887" @default.
- W2891903691 hasPublicationYear "2018" @default.
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