Zobrazeno 1 - 10
of 21
pro vyhledávání: '"José María Rico-García"'
Autor:
Nuria Llombart, E. López-Camacho, J. L. Costa-Kramer, Manuel Silva-López, Javier Alda, José María Rico-García, Juan Bueno
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Silicon microlenses are a very important tool for coupling terahertz (THz) radiation into antennas and detectors in integrated circuits. They can be used in a large array structures at this frequency range reducing considerably the crosstalk between
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Finite-difference time-domain (FDTD) algorithms are affected by numerical artifacts and noise. In order to obtain better results we propose the use of the principal component analysis based on multivariate statistical techniques. It allows a straight
Publikováno v:
Nanotechnology. 16:S230-S234
Antenna-coupled optical detectors, also named optical antennas, are being developed and proposed as alternative detection devices for the millimetre, infrared, and visible spectra. Optical and infrared antennas represent a class of optical components
Publikováno v:
Optics express. 20(21)
An experimental setup to measure the three-dimensional phase-intensity distribution of an infrared laser beam in the focal region has been presented. It is based on the knife-edge method to perform a tomographic reconstruction and on a transport of i
Autor:
Luis Miguel Sanchez-Brea, Francisco Javier Salgado-Remacha, José María Rico-García, Javier Alda
Publikováno v:
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
A diffractive optical element having equal-width concentric square rings is analyzed in this article. This constant width makes possible its realization using spatial light modulators or square pixels phase screens. It allows a simple analytical trea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2ef0cc8896bd2faf8ad1a1b1077109f
http://eprints.ucm.es/35844/
http://eprints.ucm.es/35844/
Autor:
José María Rico-García, Francisco Javier Salgado-Remacha, Javier Alda, Luis Miguel Sanchez-Brea
Publikováno v:
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Polygonal Fresnel zone plates with a low number of sides have deserved attention in micro and nanoptics, because they can be straightforwardly integrated in photonic devices, and, at the same time, they represent a balance between the high-focusing p
Autor:
Luis Miguel Sanchez-Brea, José María Rico-García, Francisco Javier Salgado-Remacha, Javier Alda
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
We analyze the optical behavior of square Fresnel zones plates. A theoretical analysis and numerical simulations based on the Rayleigh-Sommerfeld approach have been developed analyzing properties such as the depth of focus and the intensity of the fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a6e6ff34739db3324e6bcace0d8e169
http://eprints.ucm.es/35549/
http://eprints.ucm.es/35549/
Publikováno v:
Applied optics. 48(16)
We analyze the far-field intensity distribution of binary phase gratings whose strips present certain randomness in their height. A statistical analysis based on the mutual coherence function is done in the plane just after the grating. Then, the mut
Publikováno v:
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
Diffraction gratings are not always ideal but, due to the fabrication process, several errors can be produced. In this work we show that when the strips of a binary phase diffraction grating present certain randomness in their height, the intensity o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f313d4ce1b3223de70d18fe33325df85