Utilization of photon orbital angular momentum in the low-frequency radio domain

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Nail H. Ibragimov, Bo Thidé, H. Then, J. Sjöholm, K. Palmer, J. Bergman, T.D. Carozzi, YaN Istomin, Raisa Khamitova
Title: Utilization of photon orbital angular momentum in the low-frequency radio domain
Journal: Physical Review Letters
Year: 2007
Volume: 99
Issue: 8
ISSN: 0031-9007
Publisher: American Physical Society
URI/DOI: 10.1103/PhysRevLett.99.087701
ISI number: 000248984900052
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. Mathematics and Science (Sektionen för teknik – avd. för matematik och naturvetenskap)
School of Engineering S- 371 79 Karlskrona
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: nib@bth.se
Language: English
Abstract: 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 (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.
Subject: Mathematics\General
Mathematics\Analysis
Telecommunications\General
Keywords: Lie group analysis, radio, photon orbital angular momentum
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