Determination of diffusion profiles of neodymium in lithium niobate by means of spatially-resolved fluorescence measurements
Hempstead, Martin (1994) Determination of diffusion profiles of neodymium in lithium niobate by means of spatially-resolved fluorescence measurements. Journal of Applied Physics, 74, 5483-5492. (doi:10.1063/1.354229).
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We discuss the application of spatially-resolved measurements of fluorescence intensity to the determination of diffusion profiles, in this case of neodymium ions into lithium niobate, and to the concentration-dependence of the fluorescence lifetime. The technique permits a precise determination of dipsion depth, but extraction of detailed point-by-point concentration measurements is not possible. We give a detailed analysis of the effect on the accuracy of the method of systematic uncertainties, including quantum electrodynamical corrections and concentration-dependent lifetimes. The overall systematic error in measurement of difision coeficient is shown to be approximately 10%. The diffusion coefficients measured are consistent with previous values, but the fluorescence lifetimes obtained are significantly shorter than for bulk-doped Nd: LiNbO3.
|Subjects:||T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Mar 2010|
|Last Modified:||27 Mar 2014 18:58|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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