Listar Grupo de Nanofotonica por fecha de publicación
Mostrando ítems 41-54 de 54
-
Transparent glass slab thickness measurement by binary-spot focus signal
(2019-12-12)Focus error systems based on the astigmatic principle relying on four quadrant photo detectors as the signal generation element have widely been used in many different applications. Nevertheless, its working principle ... -
Dimensional characterization of large opaque samples and microdeformations by low coherence interferometry
(2020-01-25)We report on the application of an interferometric system based on the low-coherence interferometry technique to the dimensional characterization of large opaque mechanical parts as well as microdeformations experienced ... -
Determination of Nanoscale Mechanical Properties of Polymers via Plasmonic Nanoantennas
(2020-06-02)Nanotechnology and the consequent emergence of miniaturized devices are driving the need to improve our understanding of the mechanical properties of a myriad of materials. Here we focus on amorphous polymeric materials ... -
Determination of nanoscale mechanical properties of polymers via plasmonic nanoantennas
(2020-06-02)Nanotechnology and the consequent emergence of miniaturized devices are driving the need to improve our understanding of the mechanical properties of a myriad of materials. Here we focus on amorphous polymeric materials ... -
Extending low-coherence interferometry dynamic range using heterodyne detection
(2020-08)Low-coherence interferometry (LCI) technique is generating considerable interest in industrial applications where there is a need for larger measurements with high resolution. Conventional Fourier domain systems reach a ... -
Inclination shift signal: thickness or index measurement in transparent media by transmission of generally astigmatic Gaussian beams
(2021-04)The focus error signal is a widespread optical technique that harnesses the shape of a simply astigmatic Gaussian beam to produce an output signal with a well-defined linear range used for many different applications. ... -
Challenges on optical printing of colloidal nanoparticles.
(2022-01-18)While colloidal chemistry provides ways to obtain a great variety of nanoparticles with different shapes, sizes, material compositions, and surface functions, their controlled deposition and combination on arbitrary ... -
Time Fourier domain low coherence interferometry
(2022-04)We presented a new system that combine Time Domain and Fourier Domain Low Coherence Interferometry. Moving one interferometer arm the Fourier Transform can be detected in the photodiode. Maths and experimental results are shown. -
Nanoestructuras plasmónicas y magnéticas como fotocatalizadores en la oxidación de arsénico y su remoción del agua
(2022-10-03)Desarrollamos un protocolo de síntesis de nanoestructuras catalíticas bifuncionales, con propiedades plasmónicas y magnéticas, conformadas por nanoesferas de oro adsorbidas sobre un núcleo magnético de Fe3O4, para ser ... -
Efficient method of arsenic removal from water based on photocatalytic oxidation by a plasmonic–magnetic nanosystem
(2022-12-13)Arsenic is one of the most toxic elements in natural waters since prolonged exposure to this metalloid can cause chronic damage to health. Its removal from ground-water remains one of the greatest environmental challenges ... -
Long-range frequency domain low-coherence interferometry detector for industrial applications
(2023-01)A low-cost long-range frequency domain low-coherence interferometry (LCI) detector is presented: time Fourier domain LCI (TFD-LCI). Combining ideas of time domain and frequency domain techniques, the TFD-LCI detects the ... -
Nanopartículas metálicas para remediación de aguas con arsénico
(2023-05-03)La exposición prolongada al arsénico presente en aguas naturales provoca enfermedades crónicas en la población. La remoción de este metaloide de forma rápida y eficiente es uno de los mayores desafíos de hoy. En este trabajo ... -
Fabry Perot detector for low coherence interferometry
(2023-06)Se proponen dos diseños teóricos de detectores de intensidad para distintas longitudes de onda basados en cavidades Fabry Perot para ser aplicados en la técnica de interferometría de baja coherencia en el dominio de las ... -
Estimación de frecuencias de señales interferométricas con redes neuronales
(2023-09)Una vez adquirida la señal óptica de la técnica de interferencia de baja coherencia mediante un espectrómetro es necesario realizar un post procesado para encontrar la frecuencia de oscilación característica de la señal. ...