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Probing Laser Induced Space Charge Fields with Rare Earth Dopants

Published online by Cambridge University Press:  20 December 2013

Hosanna Odhner ,
Greg Stone  and
Volkmar Dierolf
Hosanna Odhner
Affiliation:
Department of Physics, Lehigh University, Bethlehem, PA 18015 USA Department of Physics, Bryn Mawr College, 101 N. Merion Ave, Bryn Mawr, PA 19010
Greg Stone
Affiliation:
Department of Physics, Lehigh University, Bethlehem, PA 18015 USA
Volkmar Dierolf
Affiliation:
Department of Physics, Lehigh University, Bethlehem, PA 18015 USA
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Abstract

Spectral shifts of the emission lines of Erbium ions in Lithium Niobate are used to determine the build-up of intrinsic electric fields under intense light irradiation. The observed spectral shifts can be translated into internal electric fields through a calibration using applied external fields. The studies show that a substantial field can be created locally (up to 150kV/mm) with observed occasional electric breakthroughs that have a corresponding field strength of up to 35kV/mm. In addition, a modification of some Erbium incorporation sites is observed suggesting its relationship with a defect that can by photo-ionized, such as Fe2+/Fe3+.

Keywords

ferroelectricphotovoltaicdefects
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1592: Symposium I – Rare Earth Doped Advanced Materials for Photonic Applications , 2014 , jsapmrs13-1592-6219
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

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