Sensors, Vol. 18, Pages 2604: Design of Binary-Sequence Zone Plates in High Wavelength Domains

Sensors, Vol. 18, Pages 2604: Design of Binary-Sequence Zone Plates in High Wavelength Domains
Sensors doi: 10.3390/s18082604
Authors:
José Miguel Fuster
Sergio Pérez-López
Pilar Candelas
Constanza Rubio

The design of zone plates is an important topic in many areas of physics, such as optics, X-rays, microwaves or ultrasonics. In this paper, a zone plate design method, which provides high flexibility in the shaping of the focusing profile, is analyzed. This flexibility is achieved through the use of binary sequences that produce zone plates with different properties and applications. It is shown that this binary-sequence method works properly at low wavelengths, but requires a modification term to work accurately in high wavelength domains. This additional term extends this powerful design method to any wavelength. Simulation results show acoustic focusing profiles for Fresnel, Fibonacci and Cantor zone plates operating at a wavelength of 1.5 mm without any distortion.

Source: Sensors - August 9, 2018 Category: Biotechnology Authors: Jos é Miguel Fuster Sergio P érez-López Pilar Candelas Constanza Rubio Tags: Article Source Type: research