RT Journal Article
T1 Rough Fresnel zone plates over metallic surfaces
A1 Salgado Remacha, Francisco Javier
A1 Sánchez Brea, Luis Miguel
A1 Álvarez Ríos, Francisco Javier
A1 Bernabeu Martínez, Eusebio
AB We analyze the focusing properties of Fresnel zone plates fabricated over steel tapes using laser ablation. Our intention is to implement the use of micro-optical elements when the use of conventional chrome–glass elements is not indicated. Because of the manufacture process, the surface presents a certain anisotropic roughness, which reduces the focusing properties. First, we develop numerical simulations by means of the Rayleigh–Sommerfeld approach, showing how roughness in both levels of the Fresnel zone plate affects the focalization of the lens. We also manufacture Fresnel zone plates over steel tape, and perform experimental verification that corroborates the numerical results.
PB The Optical Society Of America
SN 1559-128X
YR 2010
FD 2010-04-01
LK https://hdl.handle.net/20.500.14352/44287
UL https://hdl.handle.net/20.500.14352/44287
LA eng
NO © 2010 Optical Society of America.The authors are grateful to Francisco José Torcal Milla for his help. This work has been partially supported by project CCG08-UCM/DPI-3952 of Dirección General de Universidades e Investigación de la Consejería de Educación de la Comunidad de Madrid y Universidad Complutense de Madrid and project DPI2008-02391 of Ministerio de Ciencia e Innovación. Salgado-Remacha acknowledges the economical support of the Ministerio de Ciencia e Innovación.
NO Dirección General de Universidades e Investigación de la Consejería de Educación de la Comunidad de Madrid
NO Ministerio de Ciencia e Innovación (MICINN), España
NO Universidad Complutense de Madrid (UCM)
DS Docta Complutense
RD 7 abr 2025