Electron spin resonance study of an annealed Cr,Mg:YAG epitaxial saturable absorber

We have demonstrated the use of electron spin resonance (ESR) spectroscopy to observe the influence of high-temperature annealing in an oxidizing atmosphere on Cr 3+ ion concentration changes in an epitaxial Cr,Mg:YAG saturable absorber. For this purpose, a set of samples of epitaxial Cr,Mg:YAG/YAG...

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Bibliographic Details
Published inOptical materials express Vol. 13; no. 11; p. 3098
Main Authors Sarnecki, J., Malinowski, M., Podniesiński, D.
Format Journal Article
LanguageEnglish
Published Washington Optical Society of America 01.11.2023
Subjects
Absorbers
Annealing
Chemical synthesis
Electron paramagnetic resonance
Electron spin
High temperature
Ion concentration
Liquid phase epitaxy
Liquid phases
Oxidizing atmospheres
Spin resonance
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Summary:We have demonstrated the use of electron spin resonance (ESR) spectroscopy to observe the influence of high-temperature annealing in an oxidizing atmosphere on Cr 3+ ion concentration changes in an epitaxial Cr,Mg:YAG saturable absorber. For this purpose, a set of samples of epitaxial Cr,Mg:YAG/YAG structures differing in both the concentration of Cr and Mg ions and the concentrations ratio of these ions have been synthesized using liquid phase epitaxy. The X-ray diffraction analysis and optical transmission spectra measurements were performed to characterize the obtained layers. The usefulness of the ESR technique for monitoring certain high-temperature induced changes in epitaxial Cr,Mg:YAG absorber has been verified.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.497450