Influence of doping with alkaline earth metals on the optical properties of thermochromic VO2

2015 ◽  
Vol 117 (18) ◽  
pp. 185301 ◽  
Author(s):  
Marc K. Dietrich ◽  
Benedikt G. Kramm ◽  
Martin Becker ◽  
Bruno K. Meyer ◽  
Angelika Polity ◽  
...  
Keyword(s):  
Optical Properties ◽  
Alkaline Earth ◽  
Alkaline Earth Metals

Effect of Eu3+ on Spectroscopic Properties and Energy Transfer in Er3+/Eu3+-Doped Ga2O3-GeO2 Glass

2011 ◽  
Vol 399-401 ◽  
pp. 930-934
Author(s):  
Ying Gang Zhao ◽  
Dong Mei Shi ◽  
Jin Liu ◽  
Xiao Feng Wang
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
Energy Transfer ◽  
Alkaline Earth ◽  
Spectroscopic Properties ◽  
Alkaline Earth Metals ◽  
Fiber Amplifiers ◽  
Optical Fiber Amplifiers ◽  
Geo2 Glass ◽  
Thermal Stability Of

Spectroscopic properties and energy transfer (ET) in Er3+/Eu3+-doped Ga2O3-GeO2 glass have been investigated. Effects of alkali metal and alkaline earth metals ions on thermal stability of Er3+-doped gallate-germanium glass have been investigated. Simultaneously influences of Eu3+ codoping on the optical properties of Er3+-doped Ga2O3-GeO2-Na2O (GN) glass have been investigated and the possible ET mechanisms involved have also been discussed. Significant enhancement of the 1.53 µm emission intensity and decrease of upconversion (UC) fluorescence with increasing Eu3+ concentration have been observed. The results indicate that the incorporation of Eu3+ into Er3+-doped GN glass can effectively improve 1.53-μm and lower UC luminescence, which makes GN glass more attractive for their use in C-band optical fiber amplifiers.

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