Browsing by Subject "Filtres òptics"
Now showing items 1-8 of 8
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A placebo-controlled trial of tinted lenses in adolescents with good and poor academic performance: reading accuracy and speed
(Elsevier, 2010)
Article
Open Access -
Análisis comparativo de la transmitancia espectral para lentes filtrantes de baja visión
(Universitat Politècnica de Catalunya, 2017-10-25)
Master thesis
Open AccessEn la pràctica diària dels optometristes especialitzats en baixa visió, és habitual l’ús de lents filtrants, més conegudes com filtres terapèutics. A Espanya, trobem diverses opcions comercials per poder adquirir aquest ... -
Control and enhancement of beam quality of broadarea semiconductor devices and arrays by multimode interference couplers and two-dimensional gain modulation
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Conference report
Open AccessIt is proposed to control the beam quality of broad-area semiconductor devices by two-dimensional structuring enforcing phase coherence across the device. First results based on MMI couplers are presented. -
Design of ring-based optical filters with a gap in the loop
(Universitat Politècnica de Catalunya, 2011-09-27)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Università degli studi Roma treEnglish: In this thesis it has been studied optical ring-based filters; to do the analysis it has been done some simulations using the software Matlab for the theoretical model of the filter, and the software RSOFT for a ... -
Graphene-enabled Photonic Networks On-Chip
(Universitat Politècnica de Catalunya, 2015-02)
Bachelor thesis
Restricted access - confidentiality agreement -
Lag alternance in unidirectional coupled semiconductor lasers
(2009)
Conference report
Open Access -
Spatial Filter based on Photonic Crystals
(Universitat Politècnica de Catalunya, 2011-07-19)
Master thesis
Open AccessEngish: Photonic crystals are considered as promising materials for controlling and manipulating the flow of light. In this work we give first experimental evidences of spatial filtering of light beams by three-dimensional ... -
Ultra-thin silver based infrared solar filter for ophtalmic lenses
(Universitat Politècnica de Catalunya, 2011-12-21)
Master thesis
Open AccessEnglish: A silver-based transparent heat mirror for ophthalmic lenses was developed using optimal layers design techniques, to achieve high visible transparency and low solar infrared (IR) transmittance properties. After ...
