Acoustic Bessel-like beam formation by an axisymmetric grating

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 fin...

Descripción completa

Detalles Bibliográficos
Autores: Jimenez, Noe|||0000-0002-6539-670X, Romero-García, Vicente|||0000-0002-3798-6454, Picó Vila, Rubén|||0000-0003-3537-9658, Cebrecos, Alejandro|||0000-0001-8790-8668, Sánchez Morcillo, Víctor José|||0000-0003-4766-1263, García-Raffi, L. M.|||0000-0003-3985-8453, Sánchez Pérez, Juan Vicente|||0000-0002-4473-8782, Staliünas, Kestutis
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/46079
Acceso en línea:https://riunet.upv.es/handle/10251/46079
Access Level:acceso abierto
Palabra clave:Acoustic Beam formation
Axisymmetric grating
MATEMATICA APLICADA
FISICA APLICADA
Descripción
Sumario: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 formation is also reported for sound waves. The results can be generalized to wave beams of different nature, as optical or matter waves.

Similares en LA Referencia