TITLE

Erbium–thulium interaction in broadband infrared luminescent silicon-rich silicon oxide

AUTHOR(S)
Seo, Se-Young; Shin, Jung H.; Bae, Byeong-Soo; Park, Namkyoo; Penninkhof, J. J.; Polman, A.
PUB. DATE
May 2003
SOURCE
Applied Physics Letters;5/19/2003, Vol. 82 Issue 20, p3445
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The Er-Tm interaction and its effect on the luminescence from Er-Tm codoped silicon-rich silicon oxide (SRSO) is investigated. Er and Tm ions were implanted into SRSO films, which consist of Si nanocrystals embedded in a SiO[sub 2] matrix. A broad luminescence spectrum extending from 1.5 to 2.0 µm was observed under excitation with a single light source due to the simultaneous, nonresonant excitation of both Er[sup 3+] and Tm[sup 3+] via Si nanocrystals. The absolute Er[sup 3+] luminescence intensity, however, is reduced relative to the case without Tm codoping. Comparison of the Er[sup 3+] and Tm[sup 3+] luminescence intensities, lifetimes, and their pump power dependence suggest that Er-Tm interaction leading to an energy transfer from the Er[sup 3+]:[sup 4]I[sup 13/2] state to the excited Tm[sup 3+]:³H[sup 4] state is responsible for the reduction in the Er luminescence intensity.
ACCESSION #
9741848

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics