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High intensity behavior of pyroelectric photorefractive self-focusing in LiNbO3

Identifieur interne : 000517 ( Main/Exploration ); précédent : 000516; suivant : 000518

High intensity behavior of pyroelectric photorefractive self-focusing in LiNbO3

Auteurs : Jassem Safioui [Belgique, France] ; Fabrice Devaux [France] ; Kien Phan Huy [France] ; Mathieu Chauvet [France]

Source :

RBID : Hal:hal-00878963

Abstract

The formation of self-confined beams using pyroelectric effect is numerically and experimentally studied in photorefractive LiNbO3. For a given crystal temperature change, the trapped beam width is shown to be less efficient as intensity is increased. Numerical calculations reveal that the induced refractive-index profile varies along propagation for large intensities due to a nonlinear photovoltaic effect. Moreover, it eventually gives beam splitting for intensities greater than a threshold intensity that depends on LiNbO3 composition.


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<name sortKey="Chauvet, Mathieu" sort="Chauvet, Mathieu" uniqKey="Chauvet M" first="Mathieu" last="Chauvet">Mathieu Chauvet</name>
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<orgName>Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies</orgName>
<orgName type="acronym">FEMTO-ST</orgName>
<desc>
<address>
<addrLine>32 avenue de l'Observatoire 25044 BESANCON CEDEX</addrLine>
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</address>
<ref type="url">http://www.femto-st.fr</ref>
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<idno type="IdRef">026403188</idno>
<idno type="ISNI">0000 0001 2188 3779 </idno>
<orgName>Université de Franche-Comté</orgName>
<orgName type="acronym">UFC</orgName>
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<address>
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</address>
<ref type="url">http://www.univ-fcomte.fr</ref>
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<orgName>Université de Technologie de Belfort-Montbeliard</orgName>
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</address>
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<orgName>Ecole Nationale Supérieure de Mécanique et des Microtechniques</orgName>
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</address>
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<idno type="IdRef">02636817X</idno>
<idno type="ISNI">0000000122597504</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
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<country>France</country>
<placeName>
<settlement type="city" wicri:auto="siege">Besançon</settlement>
<region type="region" nuts="2">Franche-Comté</region>
</placeName>
<orgName type="university">Université de Franche-Comté</orgName>
<orgName type="institution" wicri:auto="newGroup">Université de Bourgogne Franche-Comté</orgName>
<placeName>
<settlement type="city" wicri:auto="siege">Belfort</settlement>
<region type="region" nuts="2">Franche-Comté</region>
</placeName>
<orgName type="university">Université de technologie de Belfort-Montbéliard</orgName>
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<series>
<title level="j">Optics Communications</title>
<idno type="ISSN">0030-4018</idno>
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<date type="datePub">2013</date>
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<front>
<div type="abstract" xml:lang="en">The formation of self-confined beams using pyroelectric effect is numerically and experimentally studied in photorefractive LiNbO3. For a given crystal temperature change, the trapped beam width is shown to be less efficient as intensity is increased. Numerical calculations reveal that the induced refractive-index profile varies along propagation for large intensities due to a nonlinear photovoltaic effect. Moreover, it eventually gives beam splitting for intensities greater than a threshold intensity that depends on LiNbO3 composition.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Belgique</li>
<li>France</li>
</country>
<region>
<li>Franche-Comté</li>
</region>
<settlement>
<li>Belfort</li>
<li>Besançon</li>
</settlement>
<orgName>
<li>Université de Bourgogne Franche-Comté</li>
<li>Université de Franche-Comté</li>
<li>Université de technologie de Belfort-Montbéliard</li>
</orgName>
</list>
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<country name="Belgique">
<region name="Franche-Comté">
<name sortKey="Safioui, Jassem" sort="Safioui, Jassem" uniqKey="Safioui J" first="Jassem" last="Safioui">Jassem Safioui</name>
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</country>
<country name="France">
<region name="Franche-Comté">
<name sortKey="Devaux, Fabrice" sort="Devaux, Fabrice" uniqKey="Devaux F" first="Fabrice" last="Devaux">Fabrice Devaux</name>
</region>
<name sortKey="Chauvet, Mathieu" sort="Chauvet, Mathieu" uniqKey="Chauvet M" first="Mathieu" last="Chauvet">Mathieu Chauvet</name>
<name sortKey="Phan Huy, Kien" sort="Phan Huy, Kien" uniqKey="Phan Huy K" first="Kien" last="Phan Huy">Kien Phan Huy</name>
</country>
</tree>
</affiliations>
</record>

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