Details

Autor(en) / Beteiligte

• Guo, Yanyan
• Tian, Ying
• Zhang, Liyan
• Hu, Lili
• Zhang, Junjie

Titel

Erbium doped heavy metal oxide glasses for mid-infrared laser materials

Ist Teil von

• Journal of non-crystalline solids, 2013-10, Vol.377, p.119-123

Ort / Verlag

Oxford: Elsevier B.V

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Mid-infrared 2.7μm emission properties in Er3+-doped bismuthate and tellurite glasses were comparatively investigated. Emission characteristic and energy transfer upon excitation of a conventional 980nm laser diode in bismuthate and tellurite glasses were analyzed. It is found that bismuthate glass possesses larger spontaneous transition probability A (65.26s−1) and 2.7μm emission cross section σem (9.53×10−21cm2) corresponding to the Er3+: 4I11/2→4I13/2 transition. Based on the analysis of Raman, IR spectra and XPS spectra in bismuthate and tellurite glasses, it is found that different phonon energies and local configurations of Er3+ ions are the main causes of different emission properties in Er3+-doped bismuthate and tellurite glasses. Our results suggest that the Er3+ doped bismuthate glass might be potential to the application in mid-infrared 2.7μm laser materials. ► Different transmittances induced by OH group at 2.7μm region ► Different average crystal field strengths at Er3+ positions ► Different phonon energies in tellurite and bismuthate glass system