Results 21 to 30 of about 5,700 (159)

Nanofotónica. Los grandes avances y retos de un mundo pequeño

open access: yesMundo Nano, 2019
Se presenta una panorámica general del desarrollo de la nanofotónica a nivel global. Se exponen los desarrollos pioneros y los problemas que los mismos enfrentaron.
Víctor Coello
doaj   +1 more source

Circuitos Integrados Fotónicos para la Generación de Frecuencias Ópticas (OFCG)

open access: yesMaskay, 2018
Se presentan los avances realizados en el desarrollo de generadores de peines de frecuencias ópticas (OFCG, Optical Frequency Comb Generator) mediante circuitos integrados fotónicos (PIC, Photonic Integrated Circuits). Estos son diseñados y fabricados en
Vinicio Fabián Corral Carrera   +2 more
doaj   +1 more source

Ultrafast magnetic field induced by anisotropy in carbon nanotubes irradiated by intense laser fields [PDF]

open access: yesEPJ Web of Conferences
We report an unexpected result of the anisotropy of the nonlinear optical response of carbon nanotubes, inherent to their chirality. Using a model based on the resolution of the semiconductor Bloch equations, we theoretically demonstrate that, upon ...
Zurrón-Cifuentes Óscar   +4 more
doaj   +1 more source

Measuring ultrafast vector pulses with amplitude swing [PDF]

open access: yesEPJ Web of Conferences
The amplitude swing technique is demonstrated theoretically and experimentally to measure time-varying polarization ultrashort laser pulses, using a simple setup.
Barbero Cristian   +2 more
doaj   +1 more source

Millimetric spatial resolution time-expanded ϕ-OTDR

open access: yesAPL Photonics, 2023
Time-expanded phase-sensitive optical time-domain reflectometry is a distributed optical fiber sensing technology based on dual-frequency combs that allows for dynamic and high spatial resolution measurements while maintaining reduced detection ...
Miguel Soriano-Amat   +6 more
doaj   +1 more source

Una historia interminable: dos siglos de propuestas para solucionar en el clarinete las molestias de una nota indómita

open access: yesResonancias, 2022
Since the clarinet appeared on the music scene in the early eighteenth century, one note has troubled clarinetists and makers with its difficulty in fingering, sound emission, and tuning.
Pedro Rubio Olivares   +1 more
doaj   +1 more source

Encriptación de información mediante procesamiento óptico

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2022
En esta contribución se discuten los avances más significativos en el campo de la encriptación de información mediante procesamiento óptico con énfasis en los adelantos en la reducción y la eliminación del ruido.
John Fredy Barrera-Ramírez
doaj   +1 more source

Sagnac with Double-Sense Twisted Low-Birefringence Standard Fiber as Vibration Sensor

open access: yesSensors, 2022
In this work, we study a double-sense twisted low-birefringence Sagnac loop structure as a sound/vibration sensing device. We study the relation between the adjustments of a wave retarder inside the loop (which allows controlling the transmission ...
Héctor Santiago-Hernández   +4 more
doaj   +1 more source

Light source optimizing in a biphotonic vein finder device: Experimental and theoretical analysis

open access: yesResults in Physics, 2018
Solutions oriented to non-invasive superficial veins visualization by physicians are not numerous neither cheap. In spite of the advantages these solutions can provide in cannulation or venepuncture processes, especially in some population groups, their ...
A. Madrid García, P. R. Horche
doaj   +1 more source

Analysis of double-parallel amplified recirculating optical-delay lines [PDF]

open access: yes, 1994
A novel method of analysis of double-parallel amplified recirculating optical-delay lines (DPAROD) is presented. The location of the maxima and the minima of the transfer function for this configuration is calculated and experimentally demonstrated.
Civera, Rafael   +3 more
core   +2 more sources

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