Holograms for shaping radio-wave fields

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Published 14 August 2002 • Published under licence by IOP Publishing Ltd
, , Citation Janne Salo et al 2002 J. Opt. A: Pure Appl. Opt. 4 S161 DOI 10.1088/1464-4258/4/5/365

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1 Materials Physics Laboratory, Helsinki University of Technology, PO Box 2200, FIN-02015 HUT, Finland

2 MilliLab, Radio Laboratory, Helsinki University of Technology, PO Box 3000, FIN-02015 HUT, Finland

Dates

  1. Received 10 December 2001
  2. Published

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1464-4258/4/5/S161

Abstract

Holograms—diffractive elements—are designed and fabricated for shaping millimetre-wave radio fields. Methods for the synthesis of hologram elements are discussed and several beam shapes are tested: plane waves, radio-wave vortices and Bessel beams. Here we present an overview of the methods applied and results obtained with quasi-optical hologram techniques using both amplitude and phase holograms.

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