Exploració per tema "Àrees temàtiques de la UPC::Física::Física de l'estat sòlid::Propietats òptiques"
Ara es mostren els items 1-10 de 10
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A 3D printed toolbox for opto-mechanical components
(2017-01-18)
Article
Accés obertIn this article we present the development of a set of opto-mechanical components (a kinematic mount, a translation stage and an integrating sphere) that can be easily built using a 3D printer based on Fused Filament ... -
Development of an optical spectrophotometer. Characterization of thin layers for photovoltaic devices
(Universitat Politècnica de Catalunya, 2020-11-25)
Treball Final de Grau
Accés obertThe purpose of this project is to develop a system with the functionality of a spectrophotometer. The system is based on the automation of a set of instruments available in the laboratory of the MNT research group. The ... -
Inverse-design of non-Hermitian potentials for light management
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022)
Text en actes de congrés
Accés obertIn this paper, we propose a general inverse-design strategy based on genetic algorithm optimization to achieve ‘on demand’ manipulation of light in one-dimensional (1D) and two-dimensional (2D) non-Hermitian systems. The ... -
Non-Hermitian broad aperture semiconductor lasers based on PT-symmetry
(2019)
Text en actes de congrés
Accés obertIn this paper we propose a novel configuration to regularize the complex spatiotemporal dynamics of broad area lasers into bright light beam. It has recently been shown that arbitrary non-Hermitian optical potentials based ... -
Optical properties of BaTiO3: determination of the absorption coefficient and its correlation with the material photo-response
(Universitat Politècnica de Catalunya, 2020-11-26)
Projecte Final de Màster Oficial
Accés obertThe photocontrol of ferroelectric properties has recently attracted notable attention as an effective alternative methodology to electric polarization switching. Specifically, it has been reported that macroscopic polarization, ... -
Re-investigating phase separation in industrial glasses and their associated optical properties
(Universitat Politècnica de Catalunya, 2022-06-16)
Comunicació de congrés
Accés obert -
Silicon nanocavities: Optical properties and applications
(2014)
Text en actes de congrés
Accés obertSilicon is the key enabling material for advanced technologies in electronics, and photonics. Recently, we have developed silicon nanocavities (SNs) [1,2] with particle size between 300 nm and 3000 nm. Silicon has an ... -
Spectral reflectance analysis of tobacco leaves and fungus infection detection
(2010)
Comunicació de congrés
Accés restringit per política de l'editorialOptical properties of vegetable matter and associated analytical techniques such as VIS and NIR reflectance spectroscopy were used for several decades in the foodstuff industry. By means of these techniques, is possible ... -
Spectral signatures: A way to identify species and conditions of vegetables
(2010)
Comunicació de congrés
Accés restringit per política de l'editorialThis work shows the results obtained by the application of suitable techniques for the acquisition and processing of spectral absorbance data of several vegetable species, allowing its identification –assignment of each ... -
Third harmonic generation at 223 nm in the metallic regime of GaP
(2011-03-14)
Article
Accés obertWe demonstrate second and third harmonic generation from a GaP substrate 500 μm thick. The second harmonic field is tuned at the absorption resonance at 335 nm, and the third harmonic signal is tuned at 223 nm, in a range ...