Hole-Burning Subtracted Fluorescence Line-Narrowing Spectroscopy of Squaraines in Polymer Matrices

1996 ◽  
Vol 100 (29) ◽  
pp. 11870-11882 ◽  
Author(s):  
Joachim Wolf ◽  
Kock-Yee Law ◽  
Anne B. Myers
1999 ◽  
Vol 14 (9) ◽  
pp. 3759-3764 ◽  
Author(s):  
Shunsuke Ito ◽  
Tomokatsu Hayakawa ◽  
Toshihiro Kasuga ◽  
Masayuki Nogami

Persistent spectral hole burning was observed in Eu3+-doped BaO–PbO–P2O5 glasses, and the dependence of hole properties on the glass composition was investigated in relation to the local structure surrounding the Eu3+ ions. The hole was burned on the 7F0 → 5D0 transition of the Eu3+ ions, the depth of which decreased with increasing PbO content, whereas the hole width increased. The hole was burned at 6 K, filled on increase in temperature, and erased above 120 K. Judd–Ofelt parameters and fluorescence line-narrowing spectra indicated that the symmetry of the Eu3+ site increases and the covalency of the Eu–O bond decreases with increasing PbO content.


1995 ◽  
Vol 64 (1-6) ◽  
pp. 141-148 ◽  
Author(s):  
K. Mauring ◽  
A. Suisalu ◽  
J. Kikas ◽  
E.I. Zenkevich ◽  
A.V. Chernook ◽  
...  

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