Abstract
The Nd3+ and Sm3+ spectroscopic characteristics (energy levels and emission wavelengths) dependences on the host structure and composition are analyzed. These ions are interesting for visible emission: blue obtained by doubling the Nd3+ laser emission in 900 nm range and orange –red by direct pumping of Sm3+ ion. The hosts are different oxide materials: sesquioxides ceramics Y2O3, Sc2O3, garnet ceramics Y3Al5O12 – YAG and hexaaluminates Sr1-xLaxMgxAl12-xO19 – ASL single crystals. The data are discussed in terms of the nephelauxetic effect and the crystal field strengths. The role of both effects on the emission wavelengths is outlined..
Keywords
Oxide laser materials, Nd3+, Sm3+, Dopant – host correlation.
Citation
C. GHEORGHE, A. LUPEI, V. LUPEI, L. GHEORGHE, A comparative study of Nd3+ and Sm3+ ions doped into oxide host materials; correlation between structure and spectral properties, Optoelectronics and Advanced Materials - Rapid Communications, 6, 1-2, January-February 2012, pp.44-48 (2012).
Submitted at: Oct. 17, 2011
Accepted at: Feb. 20, 2012