[EN] The development of flat acoustic lenses for different applications such as biomedical engineering is a topic of great interest. Flat lenses like Fresnel Zone Plates (FZPs) are capable of focusing energy beams without ...
The improvement in focusing capabilities of a set of annular scatterers arranged in a
fractal geometry is theoretically quantified in this work by means of the finite element method
(FEM). Two different arrangements of ...
[EN] In this letter, the improvement in focus by the use of a pupil mask produced in an acoustic mesoscale cuboid particle ¿lled with CO2 is reported. Thereby, the result shows that the pupil mask increases the sound ...
[EN] One of the most important purposes when designing an ultrasonic lens, focuses on improving targeting
the waves. On the other hand, it is well known the great scientific interest in structures that follow
fractal ...
[EN] Per the laws of geometrical optics, a plane-parallel medium does not possess focusing properties. However, in this paper, we demonstrate for the first time that an acoustic cuboid particle filled with CO2 is able to ...