Low Divergence Structured Beam In View Of Precise Long-Range Alignment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24510%2F22%3A00010891" target="_blank" >RIV/46747885:24510/22:00010891 - isvavai.cz</a>
Result on the web
<a href="https://www.epj-conferences.org/10.1051/epjconf/202226610024" target="_blank" >https://www.epj-conferences.org/10.1051/epjconf/202226610024</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Low Divergence Structured Beam In View Of Precise Long-Range Alignment
Original language description
A new method of generation of a Structured Laser Beam (SLB) with non-diverging central core was proposed and is promising for creating long distance multipoint alignment systems. This beam is generated by a set-up consisting of two convex lenses in Kepler telescope arrangement. The first one is a high refractive index ball lens, second one is a standard lens. The beam, in cross-section consisting of light and dark concentric circles, propagates over a large distance. The central core of the SLB has a very small divergence which can be tuned. A divergence of 10 μrad was proven experimentally. In this experiment, the small initial beam core diameter of 10 μm, and its diameter of 1.5 mm at a distance of 150 m, show its ability for use as a multipoint fiducial reference line. This small beam divergence seemingly lies beyond the diffraction limit for laser beams.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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