activity
20122022
most citedEnergy backflow in unidirectional spatiotemporally localized wavepackets

35 citations · 127 across the 7 of their papers we have counts for

collaborators

8 papers

physics.optics2022★ 35 cited

Energy backflow in unidirectional spatiotemporally localized wavepackets

Ioannis Besieris, Peeter Saari

Backflow, or retro-propagation, is a counterintuitive phenomenon where for a forward-propagating wave the energy or probability density locally propagates backward. In this study t…

physics.optics2021★ 24 cited

Backward energy flow in simple 4-wave electromagnetic fields

Peeter Saari, Ioannis Besieris

Electromagnetic energy backflow is a phenomenon occurring in regions where the direction of the Poynting vector is opposite to that of the propagation of the wave field. It is part…

physics.optics2020

Relativistic aberration and null Doppler shift within the framework of superluminal and subluminal nondiffracting waves

Peeter Saari, Ioannis M. Besieris

The relativistic aberration of a wavevector and the corresponding Doppler shift are examined in connection with superluminal and subluminal spatiotemporally localized pulsed optica…

physics.optics2019★ 21 cited

Reactive energy in non-diffracting localized waves

Peeter Saari, Ioannis Besieris

It is well known that although the group velocity of structured light pulses propagating in vacuum can be subluminal or superluminal, the upper limit of the energy flow velocity is…

physics.optics2019★ 32 cited

Reexamination of energy flow velocities of non-diffracting localized waves

Peeter Saari, Ott Rebane, Ioannis Besieris

A universal relation has been established between the local energy transport velocity along the direction of propagation and the group velocity of scalar and vector-valued propagat…

physics.optics2015★ 6 cited

Modeling of Space-Time Focusing of Localized Nondiffracting Pulses

Michel Zamboni-Rached, Ioannis M. Besieris

In this paper we develop a method capable of modeling the space-time focusing of nondiffracting pulses. The new pulses can possess arbitrary peak velocities and, in addition to bei…

physics.optics2015★ 9 cited

Propagation of time-truncated Airy-type pulses in media with quadratic and cubic dispersion

José Angel Borda Hernández, Michel Zamboni-Rached, Amr Shaarawi +1

In this paper, we describe analytically the propagation of Airy-type pulses truncated by a finite-time aperture when second and third order dispersion effects are considered. The m…

physics.class-ph2012

On the "Non-Restricted special Relativity" theory (NRR), and further comments on "Cherenkov vs X-waves"

Michel Zamboni-Rached, Erasmo Recami, Ioannis M. Besieris

Our aim in this paper is to recall some essential points of "Extended special Relativity", now more correctly called "Non-Restricted special Relativity" theory (NRR), and in partic…