New theoretical analysis for the laser intensity modulation method (limm)

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21 Scopus citations


The recently developed Laser Intensity Modulation Method (LIMM) has proven to be a very useful technique for determining the thickness spatial distribution of polarization or space charge in ferroelectric materials. A major drawback in the analysis of LIMM measurements is the necessity of solving a Fredholm integral equation of the 1st kind using experimental data. This is an ill-posed problem which can inherently yield a number of solutions, each of which satisfies the measured data to within experimental accuracy. In this paper, several assumptions in the original theory are eliminated to give a modified and more precise analysis of the problem. Application of the regularization method and imposition of physical constraints and the principle of parsimony then lead to the optimal solution.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
Issue number1
StatePublished - 1 Jun 1990

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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