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physics.optics2024★ 12 cited
Study of energy backflow in unidirectional monochromatic and space-time waves
Peeter Saari, Ioannis Besieris
Backflow, or retropropagation, is a counterintuitive phenomenon whereby for a forward-propagating wave the energy locally propagates backward. In the context of backflow, physicall…
physics.optics2024
Matters Arising: On physical nature of the optical deDroglie-Mackinnon wave packets. ARISING FROM Layton A. Hall and Ayman F. Abouraddy Nature Physics https://doi.org/10.1038/s41567-022-01876-6 (2023)
Peeter Saari, Ioannis M. Besieris
Hall and Abouraddy [1] have reported first experimental observation of optical de Broglie-Mackinnon wave packets, which is a seminal achievement in the study of so-called non-diffr…