Numerical extraction of distributions of space-charge and polarization from laser intensity modulation method

Tuncer, Enis; Lang, Sidney B.
February 2005
Applied Physics Letters;2/14/2005, Vol. 86 Issue 7, p071107
Academic Journal
The Fredholm integral equation of the laser intensity modulation method is an ill-conditioned problem with multiple solutions. An approach based on an application of the Monte Carlo technique and a least-squares solver is developed and tested on simulated data containing both Gaussian and white noise. Good agreement between the original polarization and the estimated one was found. The influences of bin size and spacing, and errors in material properties, are discussed. It is shown that the presented approach is an alternative to other data analysis techniques in the literature based on regularization algorithms.


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