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Waves with helical wavefronts: wave characteristics within their vortices
- 1.0303606 - URE-Y 20000013 RIV US eng C - Conference Paper (international conference)
Miler, Miroslav
Waves with helical wavefronts: wave characteristics within their vortices.
Bellingham: SPIE The International Society for Optical Engineering, 2000. Proceedings of SPIE, 4016. ISBN 0-8194-3641-0. ISSN 0277-786X. In: Photonics, Devices and Systems. - (Hrabovský, M.; Tománek, P.; Miler, M.), s. 188-192
[Photonics Prague'99 /3./. Prague (CZ), 21.06.1999-23.06.1999]
R&D Projects: GA ČR GA102/97/0876
Institutional research plan: CEZ:AV0Z2067918
Keywords : screw dislocations
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering
Helical wavefronts can be produced by transmission of coherent waves through spiral phase filters. This kind of wavefronts has in the center of the helicoid a singular point called an optical vortex. This contribution analyses the wave amplitude in the optical vortex as an integral of phases of all nearest rays around the singular point. It has been found that for a linear wedge it is the sinc square function, which describes this situation.
Permanent Link: http://hdl.handle.net/11104/0113794
Number of the records: 1