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Listar por palabra clave "Diffractive lenses"

Mostrando ítems 1-7 de 7

3D printed diffractive terahertz lenses

Furlan, Walter D.; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio; Zagrajek, Przemyslaw; Czerwinska, Elzbieta; Szustakowski, Mieczyslaw (The Optical Society, 2016)

[EN] A 3D printer was used to realize custom-made diffractive THz lenses. After testing several materials, phase binary lenses with periodic and aperiodic radial profiles were designed and constructed in polyamide material ...
Comparative Study of Numerical Methods for Solving the Fresnel Integral in Aperiodic Diffractive Lenses

Garmendía-Martínez, Adrián; Muñoz-Pérez, Francisco M.; Furlan, Walter D.; Gimenez Palomares, Fernando; Castro-Palacio, Juan Carlos; Monsoriu Serra, Juan Antonio; Ferrando, Vicente (MDPI AG, 2023-02)

[EN] In this work, we present a comparative analysis of different numerical methods to obtain the focusing properties of the zone plates based on Fibonacci and Cantor sequences. The Fresnel approximation was solved numerically ...
Diffractive corneal inlay for presbyopia

Furlan, Walter D.; Garcia-Delpech, Salvador; Udaondo, Patricia; Remón Martín, Laura; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio (John Wiley & Sons, 2017)

[EN] A conceptually new type of corneal inlays for a customized treatment of presbyopia is presented. The diffractive inlay consists on a small aperture disc having an array of micro-holes distributed inside the open zones ...
Diseño y caracterización experimental de sistemas de atrapamiento y manipulación de micro-objetos mediante técnicas ópticas, térmicas y acústicas

Muñoz Pérez, Francisco Misael (Universitat Politècnica de València, 2024-04-11)

[ES] La necesidad de confinar y manipular micro-objetos tiene aplicaciones en múltiples áreas de la ciencia y tecnología. Actualmente, existen diversas técnicas para lograr este objetivo, y una de las más destacadas es el ...
Imaging Performance of a Diffractive Corneal Inlay for Presbyopia in a Model Eye

Montagud-Martínez, Diego; Ferrando, Vicente; Machado-Olivares, Federico Jose; Monsoriu Serra, Juan Antonio; FURLAN, WALTER DANIEL (Institute of Electrical and Electronics Engineers, 2019-10-23)

[EN] In this work we evaluated the imaging properties of the Diffractive Corneal Inlay (DCI), a novel type of corneal implant working by diffraction that we proposed for the treatment of presbyopia. ZEMAX OpticStudio ...
Multiple-plane image formation by Walsh zone plates

Machado-Olivares, Federico Jose; Ferrando Martín, Vicente; Gimenez Palomares, Fernando; Furlan, Walter D.; Monsoriu Serra, Juan Antonio (The Optical Society, 2018)

[EN] A radial Walsh filter is a phase binary diffractive optical element characterized by a set of concentric rings that take the phase values 0 or ¿, corresponding to the values + 1 or ¿1 of a given radial Walsh function. ...
Multiplexing THz Vortex Beams With a Single Diffractive 3-D Printed Lens

Machado-Olivares, Federico Jose; PRZEMYSLAW ZAGRAJEK; Ferrando Martín, Vicente; Monsoriu Serra, Juan Antonio; WALTER DANIEL FURLAN (Institute of Electrical and Electronics Engineers, 2019)

[EN] We present a novel method for experimentally generating multiplexed THz vortex beams by using a single three-dimensional printed element that combines a set of radially distributed spiral phase plates, and a binary ...