ThuliumV1, Main, Exploration, bibRecord, 000632

Optical operation by electrooptical features of ZnO nanocrystalline films doped by Tm3+ ions

Identifieur interne : 000632 ( Main/Exploration ); précédent : 000631; suivant : 000633

Optical operation by electrooptical features of ZnO nanocrystalline films doped by Tm3+ ions

Auteurs : A. Douayar [Maroc] ; A. Belayachi [Maroc] ; M. Abd-Lefdil [Maroc] ; K. Nouneh [Maroc] ; Z. Laghfour [Maroc] ; I. V. Kityk [Ukraine] ; A. Slezak [Pologne] ; R. Miedzisnki [Pologne]

Source :

Journal of alloys and compounds [ 0925-8388 ] ; 2013.

RBID : Pascal:13-0191034

Descripteurs français

Pascal (Inist)
- Effet électrooptique, Dopage, Effet photoinduit, Rayonnement laser, Biréfringence, Eclairement, Densité charge, Addition thulium, Oxyde de zinc, Nanocristal, ZnO.
Wicri :
- topic : Dopage.

English descriptors

KwdEn :
- Birefringence, Charge density, Doping, Electro-optical effects, Illumination, Laser radiation, Nanocrystal, Photoinduced effect, Thulium additions, Zinc oxide.

Abstract

The photoinduced linear electrooptical effect was measured using the bicolor laser light between the fundamental 10 ns Nd:YAG laser beam and its green doubled frequency. The optimal ratio of intensities between these two beams was equal to 5:1. As a probing beam, it was used cw 12 mW He-Ne laser beam and Senarmont method was used for detection of the birefringence with accuracy of 10^-6. The studies were done on zinc oxide nanocrystalline films doped by Tm³⁺ ions. Maximal linear EO changes were obtained at minimal Tm³⁺ content equal to about 0.1% in weight units. With the further increase of the photoinducing beam the observed EO effect enhancement is not so evident and for the 0.5% of Tm³⁺ the effect disappears at all times during the illumination. The obtained results show that a principal role of localization of the rare earths in the observed effects may be a consequence of formation of the charge density non-centrosymmetry which is crucially dependent on the Tm³⁺ content in ZnO films.

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Birefringence</term>
<term>Charge density</term>
<term>Doping</term>
<term>Electro-optical effects</term>
<term>Illumination</term>
<term>Laser radiation</term>
<term>Nanocrystal</term>
<term>Photoinduced effect</term>
<term>Thulium additions</term>
<term>Zinc oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Effet électrooptique</term>
<term>Dopage</term>
<term>Effet photoinduit</term>
<term>Rayonnement laser</term>
<term>Biréfringence</term>
<term>Eclairement</term>
<term>Densité charge</term>
<term>Addition thulium</term>
<term>Oxyde de zinc</term>
<term>Nanocristal</term>
<term>ZnO</term>
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<front><div type="abstract" xml:lang="en">The photoinduced linear electrooptical effect was measured using the bicolor laser light between the fundamental 10 ns Nd:YAG laser beam and its green doubled frequency. The optimal ratio of intensities between these two beams was equal to 5:1. As a probing beam, it was used cw 12 mW He-Ne laser beam and Senarmont method was used for detection of the birefringence with accuracy of 10<sup>-6</sup>
. The studies were done on zinc oxide nanocrystalline films doped by Tm<sup>3+</sup>
 ions. Maximal linear EO changes were obtained at minimal Tm<sup>3+</sup>
 content equal to about 0.1% in weight units. With the further increase of the photoinducing beam the observed EO effect enhancement is not so evident and for the 0.5% of Tm<sup>3+</sup>
 the effect disappears at all times during the illumination. The obtained results show that a principal role of localization of the rare earths in the observed effects may be a consequence of formation of the charge density non-centrosymmetry which is crucially dependent on the Tm<sup>3+</sup>
 content in ZnO films.</div>
</front>
</TEI>
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Optical operation by electrooptical features of ZnO nanocrystalline films doped by Tm3+ ions

Optical operation by electrooptical features of ZnO nanocrystalline films doped by Tm3+ ions

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri