LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS
Identifieur interne : 000088 ( Hal/Checkpoint ); précédent : 000087; suivant : 000089LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS
Auteurs : C. J RgensenSource :
Abstract
Fluoride glasses of the zirconium barium lanthanide type (invented Rennes, 1975) and lead gallium zinc (or manganese) type (invented Le Mans, 1979) show luminescence of lanthanide J-Levels situated at least 2000 cm-1 above the closest lower level (this limit is a few times larger in most other materials). Not only is the non-radiative de-excitation as weak as incrystalline LaF3 (studied by Weber) but energy transfer between neodymium and ytterbium (III), or from manganese (II), and to some extent from chromium (III), to luminescent J-levels of neodymium (III), erbium(III) and thulium (III) is highly efficient even at low concentrations. One advantage for laser applications is that the lowest quartet state of manganese (II) has a life-time 10 to 15 milliseconds (like in many phosphate glasses and crystalline compounds) allowing energy transfer, extending by huge factors the average life-time of the emitting J-levels. Though the terawatt lasers (Livermore, California, 1978) inducing deuterium-tritium fusion are silicate glass containing neodymium (III), fluoride glasses should be preferable for many purposes. The evaluation of laser parameters from small-scale experimentation is feasible.
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DOI: 10.1051/jphyscol:19877106
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="it">LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS</title><author><name sortKey="J Rgensen, C" sort="J Rgensen, C" uniqKey="J Rgensen C" first="C." last="J Rgensen">C. J Rgensen</name></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:jpa-00226922</idno><idno type="halId">jpa-00226922</idno><idno type="halUri">https://hal.archives-ouvertes.fr/jpa-00226922</idno><idno type="url">https://hal.archives-ouvertes.fr/jpa-00226922</idno><idno type="doi">10.1051/jphyscol:19877106</idno><date when="1987">1987</date><idno type="wicri:Area/Hal/Corpus">000123</idno><idno type="wicri:Area/Hal/Curation">000123</idno><idno type="wicri:Area/Hal/Checkpoint">000088</idno><idno type="wicri:explorRef" wicri:stream="Hal" wicri:step="Checkpoint">000088</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="it">LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS</title><author><name sortKey="J Rgensen, C" sort="J Rgensen, C" uniqKey="J Rgensen C" first="C." last="J Rgensen">C. J Rgensen</name></author></analytic><idno type="DOI">10.1051/jphyscol:19877106</idno></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Fluoride glasses of the zirconium barium lanthanide type (invented Rennes, 1975) and lead gallium zinc (or manganese) type (invented Le Mans, 1979) show luminescence of lanthanide J-Levels situated at least 2000 cm-1 above the closest lower level (this limit is a few times larger in most other materials). Not only is the non-radiative de-excitation as weak as incrystalline LaF3 (studied by Weber) but energy transfer between neodymium and ytterbium (III), or from manganese (II), and to some extent from chromium (III), to luminescent J-levels of neodymium (III), erbium(III) and thulium (III) is highly efficient even at low concentrations. One advantage for laser applications is that the lowest quartet state of manganese (II) has a life-time 10 to 15 milliseconds (like in many phosphate glasses and crystalline compounds) allowing energy transfer, extending by huge factors the average life-time of the emitting J-levels. Though the terawatt lasers (Livermore, California, 1978) inducing deuterium-tritium fusion are silicate glass containing neodymium (III), fluoride glasses should be preferable for many purposes. The evaluation of laser parameters from small-scale experimentation is feasible.</div></front></TEI><hal api="V3"><titleStmt><title xml:lang="it">LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS</title><author role="aut"><persName><forename type="first">C.</forename><surname>Jørgensen</surname></persName><email></email><idno type="halauthor">250886</idno></author><editor role="depositor"><persName><forename>Archives</forename><surname>Journal de Physique</surname></persName><email>ccsd-tech@ccsd.cnrs.fr</email></editor></titleStmt><editionStmt><edition n="v1" type="current"><date type="whenSubmitted">1987-01-01 08:00:00</date><date type="whenWritten">1987</date><date type="whenModified">1987-01-01 08:00:00</date><date type="whenReleased">1987-01-01 08:00:00</date><date type="whenProduced">1987</date><date type="whenEndEmbargoed">1987-01-01</date><ref type="file" target="https://hal.archives-ouvertes.fr/jpa-00226922/document"><date notBefore="1987-01-01"></date></ref><ref type="file" subtype="publisherAgreement" n="1" target="https://hal.archives-ouvertes.fr/jpa-00226922/file/ajp-jphyscol198748C7106.pdf"><date notBefore="1987-01-01"></date></ref></edition><respStmt><resp>contributor</resp><name key="122646"><persName><forename>Archives</forename><surname>Journal de Physique</surname></persName><email>ccsd-tech@ccsd.cnrs.fr</email></name></respStmt></editionStmt><publicationStmt><distributor>CCSD</distributor><idno type="halId">jpa-00226922</idno><idno type="halUri">https://hal.archives-ouvertes.fr/jpa-00226922</idno><idno type="halBibtex">jorgensen:jpa-00226922</idno><idno type="halRefHtml">Journal de Physique Colloques, 1987, 48 (C7), pp.C7-447-C7-450. <10.1051/jphyscol:19877106></idno><idno type="halRef">Journal de Physique Colloques, 1987, 48 (C7), pp.C7-447-C7-450. <10.1051/jphyscol:19877106></idno></publicationStmt><seriesStmt><idno type="stamp" n="AJP">Archive du Journal de Physique</idno></seriesStmt><notesStmt><note type="audience" n="1">Not set</note><note type="popular" n="0">No</note><note type="peer" n="1">Yes</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="it">LUMINESCENCE IN POTENTIAL FLUORIDE GLASS LASERS</title><author role="aut"><persName><forename type="first">C.</forename><surname>Jørgensen</surname></persName><idno type="halAuthorId">250886</idno></author></analytic><monogr><idno type="halJournalId" status="INCOMING">47437</idno><title level="j">Journal de Physique Colloques</title><imprint><biblScope unit="volume">48</biblScope><biblScope unit="issue">C7</biblScope><biblScope unit="pp">C7-447-C7-450</biblScope><date type="datePub">1987</date></imprint></monogr><idno type="doi">10.1051/jphyscol:19877106</idno></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><classCode scheme="halDomain" n="phys.hist">Physics [physics]/Physics archives</classCode><classCode scheme="halTypology" n="ART">Journal articles</classCode></textClass><abstract xml:lang="en">Fluoride glasses of the zirconium barium lanthanide type (invented Rennes, 1975) and lead gallium zinc (or manganese) type (invented Le Mans, 1979) show luminescence of lanthanide J-Levels situated at least 2000 cm-1 above the closest lower level (this limit is a few times larger in most other materials). Not only is the non-radiative de-excitation as weak as incrystalline LaF3 (studied by Weber) but energy transfer between neodymium and ytterbium (III), or from manganese (II), and to some extent from chromium (III), to luminescent J-levels of neodymium (III), erbium(III) and thulium (III) is highly efficient even at low concentrations. One advantage for laser applications is that the lowest quartet state of manganese (II) has a life-time 10 to 15 milliseconds (like in many phosphate glasses and crystalline compounds) allowing energy transfer, extending by huge factors the average life-time of the emitting J-levels. Though the terawatt lasers (Livermore, California, 1978) inducing deuterium-tritium fusion are silicate glass containing neodymium (III), fluoride glasses should be preferable for many purposes. The evaluation of laser parameters from small-scale experimentation is feasible.</abstract></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
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