Browsing by Subject "Òptica"
Now showing items 1-20 of 99
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2-μm wavelength, high-energy Ho:YLF chirped-pulse amplifier for mid-infrared OPCPA
(OSA, 2015-02-02)
Article
Open AccessA 2-μm wavelength laser delivering up to 39-mJ energy, ∼10 ps duration pulses at 100-Hz repetition rate is reported. The system relies on chirped pulse amplification (CPA): a modelocked Er:Tm:Ho fiber-seeder is followed ... -
Adaptive optics control with multi-agent model-free reinforcement learning
(2022-01-14)
Article
Open AccessWe present a novel formulation of closed-loop adaptive optics (AO) control as a multi-agent reinforcement learning (MARL) problem in which the controller is able to learn a non-linear policy and does not need a priori ... -
Alumbrar el pasado
(2019-12-16)
Article
Open AccessReseña del libro "El pionero de la luz: Alhacén y su Libro de la Óptica", por MARÍA LUISA CALVO PADILLA y publicado por Ediciones Complutense, Madrid, 2019 -
Análisis de los estudios y del mundo profesional en el ámbito de la óptica y optometría desde la perspectiva del género
(Universitat Politècnica de Catalunya, 2022-01-10)
Bachelor thesis
Open AccessLa perspectiva de gènere es refereix a la metodologia i mecanismes que ens permeten identificar, qüestionar i valorar la discriminació i exclusió de les dones, que es pretenen justificar a partir de les diferències biològiques ... -
Aperture averaging effects on the probability density of irradiance fluctuations in moderate-to-strong turbulence
(Optical Society of America, 2007-04-30)
Article
Open AccessThe lognormal (LN) and gamma–gamma (GG) distributions are compared to simulated and experimental data of the irradiance fluctuations of a Gaussian beam wave propagating through the atmosphere along a horizontal path, ... -
Binocular open-view system to perform estimations of aberrations and scattering in the human eye
(2015-11-10)
Article
Open AccessWe present a system that integrates a double-pass (DP) instrument and a Hartmann-Shack (HS) wavefront sensor to provide information not only on aberrations, but also on scattering occurring in the human eye. A binocular ... -
Brightness enhancement in Non-Hermintian VCSELs
(Optical Society of American (OSA), 2019)
Conference report
Restricted access - publisher's policyVertical Cavity Surface Emitting lasers (VCSELs) are compact and efficient light sources useful for a variety of applications. However, due to lack of a transverse mode control mechanism, such lasers suffer from poor spatial ... -
Canvis relatius en la refracció perifèrica en escolars.
(Universitat Politècnica de Catalunya, 2015-06-29)
Bachelor thesis
Open AccessDiversos estudis han demostrat que la retina perifèrica juga un paper important en la determinació del creixement de l’ull, que té un efecte sobre el creixement de la longitud axial, i pot participar en el procés ... -
Canvis relatius en la refracció perifèrica en infants preescolars.
(Universitat Politècnica de Catalunya, 2015-06-29)
Bachelor thesis
Open AccessNombrosos estudis han demostrat que el desenvolupament de l’error refractiu és un procés manipulable, fins i tot un cop finalitzat el procés d’emmetropització. S’ha suggerit que quan es fa coincidir una imatge enfocada ... -
Chemotherapeutic drug-specific alteration of microvascular blood flow in murine breast cancer as measured by diffuse correlation spectroscopy
(OSA, 2016-09-01)
Article
Open AccessThe non-invasive, in vivo measurement of microvascular blood flow has the potential to enhance breast cancer therapy monitoring. Here, longitudinal blood flow of 4T1 murine breast cancer (N=125) under chemotherapy was ... -
Comparison of OFDM with single carrier in high-data rate optical communication systems
(Universitat Politècnica de Catalunya, 2011-12-23)
Master thesis (pre-Bologna period)
Open AccessEnglish: Analysis of Orthogonal FDM modulation for long-haul optical communications, and validation of its performances over conventional transmission. -
Conformational changes in matrix-isolated 6-methoxyindole: Effects of the thermal and infrared light excitations
(AIP, 2016-03-25)
Article
Open AccessConformational changes induced thermally or upon infrared excitation of matrix-isolated 6-methoxyindole were investigated. Narrowband near-infrared excitation of the first overtone of the N–H stretching vibration of each ... -
Controlled switching of orbital angular momentum in an optical parametric oscillator
(OSA, 2017-03-07)
Article
Open AccessControlled switching of orbital angular momentum (OAM) of light at practical powers over arbitrary wavelength regions can have important implications for future quantum and classical systems. Here we report on a single ... -
Creació i planificació estratègica d'una òptica en època de canvis
(Universitat Politècnica de Catalunya, 2014-12-12)
Master thesis
Open AccessEn aquest Treball de Final de Màster, es vol portar a terme un pla de negoci per implantar una òptica en un poble costaner de Catalunya (Calafell). Explicarem i desenvoluparem tots els procediments i estratègies per convertir ... -
Cyclic concentrator, carpet cloaks and fisheye lens via transformation plasmonics
(IOP, 2016-04-01)
Article
Open AccessWe first review basic equations of plasmonics in anisotropic media. We recall the origin of Maxwell’s gradient index fisheye lens. We then apply tools of transformation optics to the design of a cyclic concentrator and ... -
Descripción del doctorado en Óptica y Optometría en España un camino hacia la excelencia académica y profesional
(2018-12)
Article
Restricted access - publisher's policyEstudio observacional diseñado para describir las características demográficas y sociales de los doctores en Óptica y Optometría en España, así como las características intrínsecas del propio doctorado, las dificultades ... -
Design of adaptative digital filters for phase extraction in complex fringe patterns obtained using the Ronchi test
(2012-02-15)
Article
Open Access -
Diffuse optics with time-pulsed, gated point and ring sources
(Universitat Politècnica de Catalunya, 2015-06-29)
Bachelor thesis
Restricted access - confidentiality agreement -
Difracción: el tamaño importa
(2021-03-01)
Article
Open Access¿Nunca te has sorprendido en la autopista por la forma de los haces de luz de los faros de carretera? ¿O bien porque al tomar fotografías de paisajes dónde aparece el Sol, aparecen haces de luz como hilillos que emergen ... -
El director del CUV, Joan Gispets, conversa amb Jaume Pauné
(2010-07-01)
Audiovisual
Open Access
