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 |
