Results 41 to 50 of about 5,700 (159)

Multiplexing of encrypted data using fractal masks

, 2012
This paper was published in OPTICS LETTERS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.37.002895.
Barrera, Barrera, Dafne Amaya, Henao, Hwang, John F. Barrera, Juan A. Monsoriu, Liu, Matoba, Matoba, Monsoriu, Mosso, Myrian Tebaldi, Nomura, Néstor Bolognini, Refregier, Roberto Torroba, Situ, Tebaldi, Unnikrishnan, Walter D. Furlan   +20 more
core   +1 more source

Caracterización de electrónica impresa y recubrimientos por tomografía de coherencia óptica

Tecnología y Ciencia, 2022
La Fundación Gutenberg, a través del Instituto Argentino de Artes Gráficas, y el Grupo de Fotónica Aplicada de la Facultad Regional Delta, de la Universidad Tecnológica Nacional, se asociaron para trabajar en conjunto en el desarrollo de una nueva ...
Marcelo Sallese, Pablo Tabla, Eneas Morel, Mónica Mosquera Ortega, Julia Fossati, Jorge Torga   +5 more
doaj   +1 more source

Aplicabilidad del software de Diferencias Finitas en el Dominio del Tiempo (FDTD) al aprendizaje en Fotónica [PDF]

, 2017
Se generaran topografías FDTD en sistemas fotónicos para ejemplificación en clase por parte del profesor, realización de trabajos en grupo, realización de prácticas de laboratorio, autoaprendizaje del alumno y Trabajos Fin de Grado y ...
Calvo Padilla, María Luisa, Gonzalo Fonrodona, Isabel, Villafranca Velasco, Aitor, Weigand Talavera, Rosa María   +3 more
core   +1 more source

Thin Film Stoichiometry and Defects Management for Low Threshold and Air Stable Near‐Infrared Perovskite Laser

Advanced Materials, Volume 37, Issue 25, June 26, 2025.
As defect density in 3D perovskites is controlled by adjusting excess formamidinium iodide concentration, shallow defects acts as a carrier sink for amplified spontaneous emission (ASE). A comprehensive charge carrier dynamic model is presented to understand the critical factor of the reduction of ASE threshold.
Chun‐Sheng Jack Wu, Andrea Olivati, Giulia Folpini, Heyong Wang, Annamaria Petrozza   +4 more
wiley   +1 more source

Self-calibrating d-scan: measuring ultrashort laser pulses on-target using an arbitrary pulse compressor

Scientific Reports, 2018
In most applications of ultrashort pulse lasers, temporal compressors are used to achieve a desired pulse duration in a target or sample, and precise temporal characterization is important.
Benjamín Alonso, Íñigo J. Sola, Helder Crespo   +2 more
doaj   +1 more source

Ultrafast sub-nanometer matter-wave temporal Talbot effect

New Journal of Physics, 2021
The coherent manipulation of the electron wavefunction at the atomic spatial and temporal scales is the fundamental breakthrough underlying far-reaching ultrafast phenomena as high-order harmonic radiation and attosecond pulse generation.
Ana García-Cabrera, Carlos Hernández-García, Luis Plaja   +2 more
doaj   +1 more source

Enhancing Pneumonia Segmentation in Lung Radiographs: A Jellyfish Search Optimizer Approach

Mathematics, 2023
Segmentation of pneumonia on lung radiographs is vital for the precise diagnosis and monitoring of the disease. It enables healthcare professionals to locate and quantify the extent of infection, guide treatment decisions, and improve patient care.
Omar Zarate, Daniel Zaldívar, Erik Cuevas, Marco Perez   +3 more
doaj   +1 more source

Direct Evidence of the Presence of Hybrid Charge Transfer State in a Perovskite Nanocrystal‐Polythiophene Blend Solid State Film

Advanced Materials Interfaces, Volume 12, Issue 11, June 9, 2025.
The photophysical properties of a hybrid solid state film, composed of a conjugated polymer and CsPbBr3 (zwitterionic sulfobetaine ‐capped) perovskite nanocrystals (NCs), are investigated by ultrafast spectroscopy and morphological characterization. The transient spectroscopy highlights the presence at the interface of a charge transfer state, and the ...
Tersilla Virgili, Mariacecilia Pasini, Michele Guizzardi, Edoardo Mosconi, Stefania Milanese, Luca Gregori, Asma A. Alothman, Maria Luisa De Giorgi, Arianna Creti, Maryna Bodnarchuk, Mauro Lomascolo, Marco Anni   +11 more
wiley   +1 more source

Advantages of Femtosecond Laser Microdrilling PDMS Membranes over Conventional Methods for Organ-on-a-Chip

Journal of Manufacturing and Materials Processing
Organ-on-a-chip (OoC) technology aims to replicate the functions of human organs and tissues. This study evaluates femtosecond laser micromachining (FLM) for producing PDMS membranes with controlled porosity as an alternative approach to conventional ...
Chahinez Berrah, Daniel Sanchez-Garcia, Javier Rodriguez Vazquez Aldana, Andres Sanz-Garcia   +3 more
doaj   +1 more source

Artificial Neural Networks with Machine Learning Design for a Polyphasic Encoder

Sensors, 2023
Artificial neural networks are a powerful tool for managing data that are difficult to process and interpret. This article presents the design and implementation of backpropagated multilayer artificial neural networks, structured with a vector input ...
Sergio Alvarez-Rodríguez, Francisco G. Peña-Lecona   +1 more
doaj   +1 more source