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Conference papers
Generation of limited-diffractive twisted pulses at millimeter waves
Abstract : In this paper, the generation of twisted pulses carrying orbital angular momentum is discussed. Such pulses are generated by polychromatic superposition of higher-order Bessel beams. The non-negligible effect of the wavenumber frequency-dispersion on the pulse propagation at millimeter waves is taken into account. Large operating bandwidths are required to synthesize spatially confined electromagnetic pulses. For this reason, a wideband Bessel-beam launcher is proposed, implementing an inward cylindrical traveling-wave aperture distribution with an azimuthal phase variation. Preliminary results clearly show the possibility of successful generation of twisted electromagnetic pulses at millimeter waves. © 2017 Euraap.
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01622473
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, October 24, 2017 - 2:12:04 PM
Last modification on : Monday, January 18, 2021 - 11:04:02 AM
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, October 24, 2017 - 2:12:04 PM
Last modification on : Monday, January 18, 2021 - 11:04:02 AM