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Spectral redistribution of waveguided emission in BEH-PPV films
(Taylor & Francis Ltd, 2002-01-01)
We report on spectral redistribution of the photoluminescence (PL) emission from the edge of thin-film planar waveguides of the conjugated polymer BEH-PPV [Poly(2,5-bis(2'-ethyl-hexyl)-1,4-phenylenevinylene] induced by ...
Spectral redistribution of waveguided emission in BEH-PPV films
(Taylor & Francis Ltd, 2002-01-01)
We report on spectral redistribution of the photoluminescence (PL) emission from the edge of thin-film planar waveguides of the conjugated polymer BEH-PPV [Poly(2,5-bis(2'-ethyl-hexyl)-1,4-phenylenevinylene] induced by ...
Study of self-absorption of emission magnesium lines in laser-induced plasmas on calcium hydroxide matrix
(Institute Of Electrical And Electronics Engineers, 2012-03)
In this paper, we investigate the self-absorption of Mg I–II emission lines on laser-induced breakdown spectroscopy (LIBS) experiments. We produced the plasmas in air at atmospheric pressure by focusing a Nd:YAG laser onto ...
Self-absorption influence on the optical spectroscopy of zinc oxide laser produced plasma
(Journal of Physics: Conference Series Volume 274, Issue 1, 2011, Article number012079 17th Reunion Iberoamericana de Optica, RIAO and 10th Encuentro de Optica, Laseres y Aplicaciones, OPTILAS; Lima; Peru; 20 September 2010 through 24 September 2010; Code 84476, 2011)
Optical spectroscopy is used to study the laser ablation process of ZnO targets. It is demonstrated that even if Partial Local Thermal Equilibrium is present, self absorption process leads to a decrease of recorded lines ...
The potencial influence of rice husk ash in self compacting mortar: Cases of mechanical strength and water absorptionA influência potencial das cinzas de casca de arroz em argamassas auto adensáveis: Casos da resistência mecânica e da absorção d’água
(2018-01-01)
The study presents an experiment on the use of rice husk ash (R.H.A) for the production of self-compacting mortars. For this purpose, CPZ II 32 cement, natural sand, industrialized rice hull ash, electrostatic and steric ...
Searching for balmer self-absorption in planetary nebulae
(2006)
We analyse the distribution of 482 planetary nebulae (PNe) within the H?/H?-H?/H? and H?/H?-H?/H? planes. Whilst most sources appear to possess case B line ratios, and normal reddening decrements, certain of them also ...
Searching for balmer self-absorption in planetary nebulae
(2006)
We analyse the distribution of 482 planetary nebulae (PNe) within the Hα/Hβ-Hγ/Hβ and Hδ/Hγ-Hγ/Hβ planes. Whilst most sources appear to possess case B line ratios, and normal reddening decrements, certain of them also ...