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RESEARCH PRODUCT

Pinhole Zone Plate Lens for Ultrasound Focusing

Antonio UrisSergio Castiñeira-ibáñezFrancisco BelmarPilar CandelasConstanza RubioJosé Miguel Fuster

subject

Fresnel lensMaterials science02 engineering and technologyZone platelcsh:Chemical technology01 natural sciencesBiochemistryArticleAnalytical Chemistrylaw.inventionOpticslawSide lobe0103 physical sciencesTEORIA DE LA SEÑAL Y COMUNICACIONESFocal lengthlcsh:TP1-1185Cylindrical lensElectrical and Electronic Engineeringpinhole010306 general physicsInstrumentationultrasonic lensSimple lensbusiness.industryFresnel lens021001 nanoscience & nanotechnologyAtomic and Molecular Physics and OpticsLens (optics)FISICA APLICADAultrasonic lens; Fresnel lens; pinholePinhole (optics)0210 nano-technologybusinessMATEMATICA APLICADA

description

[EN] The focusing capabilities of a pinhole zone plate lens are presented and compared with those of a conventional Fresnel zone plate lens. The focusing properties are examined both experimentally and numerically. The results confirm that a pinhole zone plate lens can be an alternative to a Fresnel lens. A smooth filtering effect is created in pinhole zone plate lenses, giving rise to a reduction of the side lobes around the principal focus associated with the conventional Fresnel zone plate lens. The manufacturing technique of the pinhole zone plate lens allows the designing and constructing of lenses for different focal lengths quickly and economically and without the need to drill new plates.

yearjournalcountryeditionlanguage
2017-07-22Sensors; Volume 17; Issue 7; Pages: 1690
10.3390/s17071690https://dx.doi.org/10.3390/s17071690