Article ID Journal Published Year Pages File Type
7840104 Journal of Luminescence 2018 11 Pages PDF
Abstract
Photoconductivity and laser induced white emission were investigated in Yb3+ doped YAG nanoceramics under infrared laser excitation in vacuum. Correlation between the two phenomena was analyzed. Power dependences of both photocurrent and white emission exhibited a threshold behavior characteristic for multiphoton avalanche processes. Comparison between different dopant concentrations showed that with higher Yb3+ content, the magnitudes of broadband emission intensity and photoconductivity rise. Furthermore, the excitation power thresholds for occurrence of the said phenomena decrease with increasing dopant concentration.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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