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Utilization of photon orbital angular momentum in the low-frequency radio domain
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Astronomy and Space Physics.
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2007 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 99, no 8, 087701- p.Article in journal (Refereed) Published
Abstract [en]

We show numerically that vector antenna arrays can generate radio beams that exhibit spin and orbital angular momentum characteristics similar to those of helical Laguerre-Gauss laser beams in paraxial optics. For low frequencies (less than or similar to 1 GHz), digital techniques can be used to coherently measure the instantaneous, local field vectors and to manipulate them in software. This enables new types of experiments that go beyond what is possible in optics. It allows information-rich radio astronomy and paves the way for novel wireless communication concepts.

Place, publisher, year, edition, pages
2007. Vol. 99, no 8, 087701- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-150069DOI: 10.1103/PhysRevLett.99.087701ISI: 000248984900052OAI: oai:DiVA.org:uu-150069DiVA: diva2:406412
Available from: 2011-03-25 Created: 2011-03-25 Last updated: 2011-03-25Bibliographically approved

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Swedish Institute of Space Physics, Uppsala DivisionDepartment of Astronomy and Space Physics
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