Title

Spectroscopy and Dynamics of Er3+: Y2 Si O5 at 1.5 μM

Authors

Thomas Böttger, University of San FranciscoFollow
Y Sun
C W. Thiel
R L. Cone

Document Type

Article

Publication Date

2006

Abstract

We present the results of detailed site-selective spectroscopy performed on the I15∕24↔I13∕24 transition of Er3+:Y2SiO5 at 1.5μm. New determinations of the I13∕24 and I15∕24 crystal-field-level structure for the two crystallographically inequivalent Er3+ sites have been made. The fluorescence dynamics of the metastable I13∕24:Y1 excited state was investigated, showing exponential decays for Er3+ at both crystallographic sites with fluorescence lifetimes of 11.4ms for site 1 and 9.2ms for site 2. Exceptionally sharp inhomogeneous absorption lines of 180, 390, and 510MHz were observed in 0.0015% Er3+:Y2SiO5, 0.005% Er3+:Y2SiO5, and 0.02% Er3+:Y2SiO5 crystals, respectively. The g-values for the lowest energy I15∕24 (Z1) and I13∕24 (Y1) doublets were measured to be 5.5 and 4.6 for site 1 and 15.0 and 12.9 for site 2 when the magnetic field was oriented along the crystal’s D1 axis.

Comments

Copyright 2006 American Physical Society

Article available at: http://dx.doi.org/10.1103/PhysRevB.74.075107

DOI

10.1103/PhysRevB.74.075107

Recommended Citation

Thomas Böttger, Y. Sun, C. W. Thiel, and R. L. Cone. Spectroscopy and Dynamics of Er3+: Y2 Si O5 at 1.5 μM. Phys. Rev. B 74, 075107 – Published 21 August 2006.