Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency

6533b820fe1ef96bd1279ccc

RESEARCH PRODUCT

Analysis of Fresnel Zone Plates Focusing Dependence on Operating Frequency

José Miguel Fuster Sergio Pérez-lópez Constanza Rubio Pilar Candelas Sergio Castiñeira-ibáñez

subject

Fresnel lens Fresnel zone Operating frequency 02 engineering and technology Span (engineering)lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry law.invention Optics operating frequency law Distortion 0103 physical sciences Limit (music)TEORIA DE LA SEÑAL Y COMUNICACIONES Focal length lcsh:TP1-1185 Electrical and Electronic Engineering Underwater Instrumentation ultrasonic lens 010302 applied physics Physics business.industry Fresnel lens ultrasonic lens; Fresnel lens; focal depth; focal distortion; operating frequency 021001 nanoscience & nanotechnology focal distortion Atomic and Molecular Physics and Optics FISICA APLICADA 0210 nano-technology business focal depth MATEMATICA APLICADA

description

[EN] The focusing properties of Fresnel Zone Plates (FZPs) against frequency are analyzed in this work. It is shown that the FZP focal length depends almost linearly on the operating frequency. Focal depth and focal distortion are also considered, establishing a limit on the frequency span at which the operating frequency can be shifted. An underwater FZP ultrasound focusing system is demonstrated, and experimental results agree with the theoretical analysis and simulations.

year	journal	country	edition	language
2017-12-05	Sensors; Volume 17; Issue 12; Pages: 2809

10.3390/s17122809 https://dx.doi.org/10.3390/s17122809

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