Exploració per tema "Light absorption"
Ara es mostren els items 1-8 de 8
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CFD studies of the convective heat transfer coefficients and pressure drops in geometries applied to water cooling channels of the crotch absorbers of ALBA Synchrotron light source
(Universitat Politècnica de Catalunya, 2022-07-14)
Treball Final de Grau
Accés obertCurrently, the storage ring vacuum chambers of ALBA are protected by 156 crotch absorbers made of copper and Glidcop. After more than 10 years of operation as a third-generation light source, the ALBA II project arose, ... -
Effect of modifier oxides on spectroscopic and optical properties of Pr3+ doped PbO-Ro2O3-WO3-B2O3 glasses (with Ro2O = Sb2O3, Al2O3, and Bi2O3)
(2020-09-28)
Article
Accés obertPraseodymium (Pr2O3) doped PbO-Ro2O3-WO3-B2O3 glasses were prepared by melt quenching method and their optical absorption and emission spectra were characterized, for three different heavy metal oxides (Ro2O3 = Sb2O3, ... -
Ergodic Light Propagation in a Half-Cylinder Photonic Plate for Optimal Absorption in Perovskite Solar Cells
(2019-05-17)
Article
Accés obertIn an optical medium slab, a randomization of the interfaces will lead to an ergodic light propagation, implying a kind of light trapping that sets an upper limit for a broadband absorption enhancement factor. However, in ... -
Inverse Optical Cavity Design for Ultrabroadband Light Absorption Beyond the Conventional Limit in Low-Bandgap Nonfullerene Acceptor–Based Solar Cells
(2019-05-23)
Article
Accés obertIn the subwavelength regime, several nanophotonic configurations have been proposed to overcome the conventional light trapping or light absorption enhancement limit in solar cells also known as the Yablonovitch limit. It ... -
Paper potencial de les opsines visuals en altres sentits
(Universitat Politècnica de Catalunya, 2024-01-09)
Treball Final de Grau
Accés obertResum Introducció: Les opsines són proteïnes integrals de membrana que presenten absorció selectiva per a cada tipus de fotopigment cobrint tot el rang de la visió humana. Una molècula de fotopigment està formada per ... -
Plasmonically enhanced light absorption in graphene nanoribbons
(Universitat Politècnica de Catalunya, 2012-09-06)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] Light absorption plays a crucial role in both optical detectors and photovoltaics. In order to improve the light absorption properties of materials different measures can be taken. This thesis considers light ... -
Role of the spectral shape of quantum correlations in two-photon virtual-state spectroscopy
(2013-05)
Article
Accés obertThe true role of entanglement in two-photon virtual-state spectroscopy (Saleh et al 1998 Phys. Rev. Lett. 80 3483), a two-photon absorption spectroscopic technique that can retrieve information about the energy level ... -
Tunable complete optical absorption in multilayer structures including 𝐆𝐞𝟐𝐒𝐛𝟐𝐓𝐞𝟓 without lithographic patterns
(Wiley, 2017-01-04)
Article
Accés obertControlling the spectral transmission, reflection, and absorption properties of optical structures is of great interest for many applications in photonics. Particularly, perfect absorbers over a wide frequency (wavelength) ...