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physics.optics2017
Lorenz curve of a light beam: evaluating beam quality from a mayorization perspective
Miguel A. Porras, Isabel Gonzalo, M. Ahmir Malik
We introduce a novel approach for the characterization of the quality of a laser beam that is not based on particular criteria for beam width definition. The Lorenz curve of a ligh…
physics.optics2002★ 22 cited
Pulsed light beams in vacuum with superluminal and negative group velocities
M. A. Porras, I. Gonzalo, A. Mondello
Gouy's phase of transversally limited pulses can create a strong anomalous dispersion in vacuum leading to highly superluminal and negative group velocities. As a consequence, a fo…