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Acoustic Bessel-like beam formation by an axisymmetric grating

Autor
Jimenez, N.; Romero-García, V.; Pico, R.; Cebrecos, A.; Sánchez, V.; Garcia, L.; Sanchez, J.; Staliunas, K.
Tipus d'activitat
Article en revista
Revista
Europhysics letters
Data de publicació
2014-04
Volum
106
Número
2
Pàgina inicial
24005-1
Pàgina final
24005-5
DOI
https://doi.org/10.1209/0295-5075/106/24005 Obrir en finestra nova
Projecte finançador
FIS2011-29731-C02-01
URL
http://epljournal.edpsciences.org/articles/epl/abs/2014/08/epl16221/epl16221.html Obrir en finestra nova
Resum
We report Bessel-like beam formation of acoustic waves by means of an axisymmetric grating of rigid tori. The results show that the generated beam pattern is similar to that of Bessel beams, characterized by elongated non-diffracting focal spots. A multiple foci structure is observed, due to the finite size of the lens. The dependence of the focal distance on the frequency is also discussed, on the basis of an extended grating theory. Experimental validation of acoustic Bessel-like beam formatio...
Paraules clau
Acoustic beam formation, Axisymmetric grating
Grup de recerca
DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers

Participants

  • Jimenez, Noe  (autor)
  • Romero García, Vicenç  (autor)
  • Pico Vila, Rubén  (autor)
  • Cebrecos, A.  (autor)
  • Sánchez Morcillo, Victor José  (autor)
  • Garcia Raffi, Luis Miguel  (autor)
  • Sanchez Perez, Juan Vicente  (autor)
  • Staliunas, Kestutis  (autor)