Optical properties of transition metal ion-doped MgAl2O4 spinel for laser application
Ti and Mn‐doped MgAl2O4 spinel have been successfully grown by the micro‐pulling‐down method and spectroscopic properties have been investigated in view of the potential use as a short‐wavelength tunable solid‐state laser. Strong blue emission is observed from Ti‐doped MgAl2O4 and green emission fro...
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Published in | Physica status solidi. C Vol. 4; no. 3; pp. 1380 - 1383 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin
WILEY-VCH Verlag
01.03.2007
WILEY‐VCH Verlag |
Subjects | |
Online Access | Get full text |
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Summary: | Ti and Mn‐doped MgAl2O4 spinel have been successfully grown by the micro‐pulling‐down method and spectroscopic properties have been investigated in view of the potential use as a short‐wavelength tunable solid‐state laser. Strong blue emission is observed from Ti‐doped MgAl2O4 and green emission from a Mn‐doped one. The optimum conditions to obtain the strongest emission were studied by changing the doping concentration. These two broad emission bands around 455 nm for Ti (decay time of 5.7 µs) and 518 nm for Mn (decay time of 6.11 ms) were obtained by pumping in the UV region at 266 nm and 355 nm, respectively. Discussion is submitted to assign the origins of each type of fluorescence in spinel. Ni2+‐doped crystal exhibits a broad absorption band at around 980 nm suitable for InGaAs laser diode pumping and a broad emission band in the near infrared with two decay times at 210 µs and 850 µs respectively and high quantum yields. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |
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Bibliography: | Japan Society for the Promotion of Science (JSPS) istex:9704471CA02495E556A265355997178B83BF3E44 ark:/67375/WNG-Z68PT25F-R ArticleID:PSSC200673872 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 1862-6351 1610-1634 1610-1642 |
DOI: | 10.1002/pssc.200673872 |