Journal
ELECTRONICS LETTERS
Volume 37, Issue 13, Pages 834-835Publisher
IEE-INST ELEC ENG
DOI: 10.1049/el:20010551
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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.
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