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The generation of Bessel beams at millimetre-wave frequencies by use of an axicon.

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>11/1999
<mark>Journal</mark>Optics Communications
Issue number4-6
Number of pages3
Pages (from-to)213-215
<mark>Original language</mark>English


An axicon is used to generate a Bessel beam at 90 GHz in the millimetre-wave region of the spectrum. The Bessel beam has a central intensity maximum of approximately 4 mm in diameter that is maintained over a propagation distance greater than 60 mm. (C) 1999 Elsevier Science B.V. All rights reserved.