Title :
Time-resolved study of thermal and electronic nonlinearities in Nd +3 doped fluoride glasses
Author :
Andrade, A.A. ; Catunda, T. ; Lebullenger, R. ; Hernandes, A.C. ; Baesso, M.L.
Author_Institution :
Inst. de Fisica, Sao Paulo Univ., Brazil
fDate :
1/8/1998 12:00:00 AM
Abstract :
Using a time resolved Z-scan technique, the authors distinguished electronic (population lens) and thermal nonlinearities. The first measurements of the polarisability difference Δα between excited (4F3/2) and ground (4I9/2 ) states of Nd+3 ions in fluoride glasses are presented. A value of Δα≃1.6×10-26 cm 3 was obtained in fluorindate glass and Δα<0.2×10-26 cm3 was estimated for ZBLAN
Keywords :
excited states; fluoride glasses; ground states; neodymium; nonlinear optics; optical glass; thermal blooming; thermo-optical effects; time resolved spectra; 4F3/2 state; 4I9/2 state; Nd+3 doped fluoride glasses; ZBLAN; ZBLAN:Nd; ZrF4-BaF2-LaF3-AlF3-NaF:Nd; electronic nonlinearities; excited states; fluoride glasses; fluorindate glass; ground states; polarisability difference; population lens; thermal and electronic nonlinearities; thermal nonlinearities; time resolved Z-scan technique; time-resolved study;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980056
