Ep. Chukalina et al., Fine structure of spectral lines in LiYF4 : Er3+ due to isotopic disorder in the lattice, PHYS LETT A, 269(5-6), 2000, pp. 348-350
We report the first observation of the resolved structure in the I-4(15/2)
--> I-4(13/2) infrared transition of LiYF4:Er caused by lithium isotopes of
the lattice. Isotope shifts of 0.019 and 0.016 cm(-1) and inhomogeneous li
newidths of 0.010 and 0.007 cm(-1) were measured for the lines 6534.3 and 6
538.3 cm(-1), respectively. Unresolved structure due to different erbium is
otopes totals similar to 0.010 cm(-1). (C) 2000 Elsevier Science B.V. All r
ights reserved.