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Photoinduced effects in TiO2 nanocrystalline films with different morphology

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Main Authors: Djaoued, Yahia, Ozga, K., Wojciechowski, A., Ali H. Reshak, Al-Jaary, Robichaud, J., Kityk, I. V.
Format: Article
Language:English
Published: Elsevier B. V. 2010
Subjects:
Nanocrystalline films
Photoinduced
Second harmonic generation
Third harmonic generation
TiO2
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/10184
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spelling my.unimap-101842010-11-12T04:28:11Z Photoinduced effects in TiO2 nanocrystalline films with different morphology Djaoued, Yahia Ozga, K. Wojciechowski, A. Ali H. Reshak, Al-Jaary Robichaud, J. Kityk, I. V. Nanocrystalline films Photoinduced Second harmonic generation Third harmonic generation TiO2 Link to publisher's homepage at http://www.elsevier.com/ The complex studies of photoinduced absorption, second harmonic generation and third harmonic generation were performed for TiO2 films of different morphology. In particular we have studied the influence of a bicolor laser beam treatment by a 300 mW green cw laser emitting at 532 nm on changes of absorption, birefringence and third harmonic generation on TiO2 films. We have performed the corresponding measurements using as a photoinducing light a glass erbium 10 ns pulsed laser with a fundamental wavelength of about 1540 nm together with its second harmonic generation (SHG) at 770 nm using the method of bicolor laser treatment and a frequency repetition of about 10 Hz. Varying the power density ratios between the fundamental and its SHG we have established the optimal conditions to achieve maximal photoinduced changes of absorption, birefringence and third harmonic generation (THG). We have detected changes of the birefringence and of the THG immediately after the laser treatment. We study an influence of the nanoparticle's sizes on the observed changes of the optical features. Additionally we have studied the role of different chemical treatment on the structural and optical parameters. 2010-11-12T04:28:11Z 2010-11-12T04:28:11Z 2010-10-22 Article Journal of Alloys and Compounds, vol. 508(2), 22 October 2010, pages 599-605 0925-8388 http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TWY-50XS6DS-10&_user=1659113&_coverDate=10%2F22%2F2010&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_acct=C000054070&_version=1&_urlVersion=0&_userid=1659113&md5=cacd3b3d8efce0c4cb34f81ef02311b9&searchtype=a http://hdl.handle.net/123456789/10184 en Elsevier B. V.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Nanocrystalline films
Photoinduced
Second harmonic generation
Third harmonic generation
TiO2
spellingShingle Nanocrystalline films
Photoinduced
Second harmonic generation
Third harmonic generation
TiO2
Djaoued, Yahia
Ozga, K.
Wojciechowski, A.
Ali H. Reshak, Al-Jaary
Robichaud, J.
Kityk, I. V.
Photoinduced effects in TiO2 nanocrystalline films with different morphology
description Link to publisher's homepage at http://www.elsevier.com/
format Article
author Djaoued, Yahia
Ozga, K.
Wojciechowski, A.
Ali H. Reshak, Al-Jaary
Robichaud, J.
Kityk, I. V.
author_facet Djaoued, Yahia
Ozga, K.
Wojciechowski, A.
Ali H. Reshak, Al-Jaary
Robichaud, J.
Kityk, I. V.
author_sort Djaoued, Yahia
title Photoinduced effects in TiO2 nanocrystalline films with different morphology
title_short Photoinduced effects in TiO2 nanocrystalline films with different morphology
title_full Photoinduced effects in TiO2 nanocrystalline films with different morphology
title_fullStr Photoinduced effects in TiO2 nanocrystalline films with different morphology
title_full_unstemmed Photoinduced effects in TiO2 nanocrystalline films with different morphology
title_sort photoinduced effects in tio2 nanocrystalline films with different morphology
publisher Elsevier B. V.
publishDate 2010
url http://dspace.unimap.edu.my/xmlui/handle/123456789/10184
_version_ 1643789763930488832
score 13.222552

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