Millimetre-wave Bessel beams using computer holograms

J. Salo, J. Meltaus, E. Noponen, J. Westerholm, M. M. Salomaa, Anne Lönnqvist, Jussi Säily, Janne Häkli, J. Ala-Laurinaho, A. V. Räisänen

Research output: Contribution to journalArticleScientificpeer-review

40 Citations (Scopus)

Abstract

A computer-generated binary amplitude hologram is used to transform an initial Gaussian electromagnetic field with spherical phase front at 310 GHz into a non-diffracting Bessel beam. The beam profile is measured with the help of a near field scanner. In contrast to the situation in the optical region, both amplitude and phase information is readily obtainable from the generated field.

Original languageEnglish
Pages (from-to)834-835
JournalElectronics Letters
Volume37
Issue number13
DOIs
Publication statusPublished - 21 Jun 2001
MoE publication typeA1 Journal article-refereed

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