Synthesis of sub-diffraction quasi-non-diffracting beams by angular spectrum compression
نویسندگان
چکیده
منابع مشابه
Negative refraction can make non-diffracting beams.
We report the results of simulations relating to the illumination of a structure consisting of a slab constructed from a 2-D hexagonal array of metal rods with a terahertz frequency source. As a consequence of negative refraction an essentially non-divergent beam pattern is observed. Although the results presented relate to the terahertz regime they should also be applicable at other frequencies.
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ژورنال
عنوان ژورنال: Optics Express
سال: 2017
ISSN: 1094-4087
DOI: 10.1364/oe.25.027104