Author/Authors :
G.K. Cruz، نويسنده , , F.M. K?pp، نويسنده , , M.A. Viatroski، نويسنده , , A. Novatski، نويسنده , , S.L. G?mez، نويسنده , , A.R. Jurelo، نويسنده , , J. Flemming، نويسنده , , C. Bonardi، نويسنده ,
Abstract :
In this paper we report the upconversion emission for the 4S3/2→4I15/2 Stark components of Er3+ ion-doped fluorozirconate glass at T=2 K. The spectrum shows only seven peaks, one less than expected theoretically, being missing the peak at the wave number 17,996 cm−1 (λ=555 nm). This result is compared with the luminescence for the same transition at the same conditions which exhibits the eight expected lines. Such a discrepancy is attributed to a re-absorption process (ESRA) between the energy levels 4I13/2 and 2H9/2.
