Exciton-erbium coupling and the excitation dynamics of Er[sup 3+] in erbium-doped silicon-rich silicon oxide

Seo, Se-Young; Shin, Jung H.
April 2001
Applied Physics Letters;4/30/2001, Vol. 78 Issue 18, p2709
Academic Journal
The exciton-erbium coupling and the excitation dynamics of Er[sup 3+] in erbium-doped silicon-rich silicon oxide are investigated using time-resolved measurements of Er[sup 3+] luminescence. The dependence of the Er[sup 3+] luminescence on the pump power and duration indicates that the exciton-erbium coupling is dominant over carrier-exciton coupling. The results further support the idea that the luminescent Er[sup 3+] ions are not in the Si nanoclusters but in the interface region surrounding the nanoclusters. © 2001 American Institute of Physics.


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