Anisotropy of thermal and spectral characteristics in Tm:YAP laser crystals
Identifieur interne : 001455 ( Main/Exploration ); précédent : 001454; suivant : 001456Anisotropy of thermal and spectral characteristics in Tm:YAP laser crystals
Auteurs : YANLING LU [République populaire de Chine] ; YONGBING DAI [République populaire de Chine] ; YANG YANG [République populaire de Chine] ; JUN WANG [République populaire de Chine] ; ANPING DONG [République populaire de Chine] ; BAODE SUN [République populaire de Chine]Source :
- Journal of alloys and compounds [ 0925-8388 ] ; 2008.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Dopage.
English descriptors
- KwdEn :
Abstract
Thermal expansion coefficients along three main crystallographic axes of Tm-doped YA1O3 (Tm:YAP) single crystals were investigated in the temperature range of 30-1350°C, and the results showed that they are 11.9458, 5.0012 and 10.5439 x 10-6 K-1, respectively. Polarized absorption and fluorescence spectra of Tm:YAP crystals in a-c directions were measured. The absorption cross sections near 794 nm are 8.64, 9.22 and 6.80 x 10-21 cm2, respectively. According to the fluorescence spectra, the A-axis emission cross section at 1.86 is determined to be 4.33 x 10-21 cm2, larger than those along two other axes. The results above showed that the anisotropy effect of thermal and optical characteristics exists in Tm:YAP crystal and b orientation is the preferred one. The origin and peculiarities of anisotropy were investigated and discussed.
Affiliations:
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Le document en format XML
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<series><title level="j" type="main">Journal of alloys and compounds</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term>
<term>Aluminium oxide</term>
<term>Anisotropy</term>
<term>Crystal orientation</term>
<term>Doping</term>
<term>Fluorescence</term>
<term>Impurities</term>
<term>Laser materials</term>
<term>Monocrystals</term>
<term>Optical constants</term>
<term>Optical materials</term>
<term>Optical spectrum</term>
<term>Thermal expansion coefficient</term>
<term>Thulium additions</term>
<term>Yttrium oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Anisotropie</term>
<term>Coefficient dilatation thermique</term>
<term>Addition thulium</term>
<term>Spectre absorption</term>
<term>Fluorescence</term>
<term>Constante optique</term>
<term>Orientation cristalline</term>
<term>Impureté</term>
<term>Dopage</term>
<term>Spectre optique</term>
<term>Oxyde d'yttrium</term>
<term>Oxyde d'aluminium</term>
<term>Matériau laser</term>
<term>Monocristal</term>
<term>Matériau optique</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Dopage</term>
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<front><div type="abstract" xml:lang="en">Thermal expansion coefficients along three main crystallographic axes of Tm-doped YA1O<sub>3</sub>
(Tm:YAP) single crystals were investigated in the temperature range of 30-1350°C, and the results showed that they are 11.9458, 5.0012 and 10.5439 x 10<sup>-6</sup>
K<sup>-1</sup>
, respectively. Polarized absorption and fluorescence spectra of Tm:YAP crystals in a-c directions were measured. The absorption cross sections near 794 nm are 8.64, 9.22 and 6.80 x 10<sup>-21</sup>
cm<sup>2</sup>
, respectively. According to the fluorescence spectra, the A-axis emission cross section at 1.86 is determined to be 4.33 x 10<sup>-21</sup>
cm<sup>2</sup>
, larger than those along two other axes. The results above showed that the anisotropy effect of thermal and optical characteristics exists in Tm:YAP crystal and b orientation is the preferred one. The origin and peculiarities of anisotropy were investigated and discussed.</div>
</front>
</TEI>
<affiliations><list><country><li>République populaire de Chine</li>
</country>
</list>
<tree><country name="République populaire de Chine"><noRegion><name sortKey="Yanling Lu" sort="Yanling Lu" uniqKey="Yanling Lu" last="Yanling Lu">YANLING LU</name>
</noRegion>
<name sortKey="Anping Dong" sort="Anping Dong" uniqKey="Anping Dong" last="Anping Dong">ANPING DONG</name>
<name sortKey="Baode Sun" sort="Baode Sun" uniqKey="Baode Sun" last="Baode Sun">BAODE SUN</name>
<name sortKey="Jun Wang" sort="Jun Wang" uniqKey="Jun Wang" last="Jun Wang">JUN WANG</name>
<name sortKey="Yang Yang" sort="Yang Yang" uniqKey="Yang Yang" last="Yang Yang">YANG YANG</name>
<name sortKey="Yongbing Dai" sort="Yongbing Dai" uniqKey="Yongbing Dai" last="Yongbing Dai">YONGBING DAI</name>
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