Cr 3 Doped Crystals
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Propriedades ópticas, magnéticas e estruturais de monocristais Cs2NaAlF6 dopados com cromo trivalente / Optical, magnetic and structural properties of Cs2NaAlF6 single crystals doped with trivalent chromium
This work is devoted to study the optical, magnetic and structural properties of the elpasolite crystal Cs2NaAlF6 with 0.1, 1.0, 3.0, 10.0, 30.0 and 50.0% of Cr3+ ions. The interest on this material lies on the fact that such system presents a broad, intense band in the visible and infrared regions at room temperature and therefore can be used as a tunable r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2011
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2. Characterization of Cs2NaAIF6:Cr3+ and Cs2NaGaF6:Fe3+ single crystals by electron paramagnetic resonance / Caracterização dos monocristais Cs2NaAIF6:Cr3+ e Cs2NaGaF6:Fe3+ por meio de ressonancia paramagnetica eletronica
The interest in materials with large bands of absorption and luminescence is due to the possibility of their applications as tunable solid state lasers. The crystals Cs2NaAlF6:Cr3+ and Cs2NaGaF6:Fe3+ present these properties and , naturally, some of their physical characteristics, such as the crystal field , are decisive for their optical activity and should
Publicado em: 2006
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3. Espectroscopia não linear em cristais fluoretos e polianilina / Nonlinear spectroscopic characterization in fluoride crystals and polyaniline
In this work we studied the effect of nonlinear refraction in Cr+3 doped fluoride host crystals and polymers. The fluoride crystals have been attractive due a broad emission bandwidth and a tunable solid-state lasing in the range of approximately 780-1010 nm. Applying the Thermal Lens (TL) technique, we accomplished a quantitative study of the behavior of th
Publicado em: 2001
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4. Growth and optical properties of Cr3+ doped GdAlO3 single crystals
High-Temperature Solution crystal growth experiments on Cr3+ doped GdAlO3, are described where the flux and solute stoichiometry was changed for the process optimization to obtain homogeneous and inclusion free larger crystals. Transparent single crystals up to 3.8 cm³ have been grown. The pressure-induced wavelength shift of laser excited fluorescence in s
Materials Research. Publicado em: 2000-04
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5. Phase conjugation and transverse self-phase modulation in Cr+3 doped crystals / Conjugação de fase e modulação transversal de fase em cristais dopados com Cr+3
In this work we studied theoretical and experimentally the effects of Phase Conjugation by Degenerate Four Wave Mixing and Transversal Phase (PCD4WM) Modulation in Cr+3 doped crystals. We studied the PDC4WM in Al2O3:Cr+3 (ruby) and GdAlO3:Cr+3 with on Ar laser (at λ= 514 nm) and obtained a good agreement between our experimental and theoretical results
Publicado em: 1989
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6. Caracterização de monocristais de nióbio de lítio (LiNbO3
Este trabalho tem por objetivo principal a caracterização dos microcristais de niobato de lítio (LiNbO3) dopados com óxido de cromo (CrO3) e com óxido de ferro (Fe2O3), crescidos no Departamento de Física e Ciências dos Materiais do Instituto de Física e Química de São Carlos - USP. Para isso, utilizamos as seguintes técnicas: Ataque Químico Pref
Publicado em: 1988
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7. Estudo sobre o recozimento do K3 Cr (CNS) 6.4H2O dopado com 51 Cr (III)
A analyses of the species formed after heat and/ or gamma-ray photon treatment of Cr(III)-doped K3Cr(CNS)6.4H2O, were made using a combination of chromatography and nuclear analytical methods. The behavior of doped crystals under photolysis at low temperature shows that K3Cr(CNS)6.4H2O has small sensitivity to light . However, the existence of ligand exchang
Publicado em: 1981