Abstract
The Laser Intensity Modulation Method (LIMM) is used to determine the spatial distribution of polarization in the direction of the polar axis of a ferroelectric sample. It is based upon measurement of the pyroelectric current generated by the material when it is heated with a laser beam which is intensity-modulated over a range of frequencies. A modification of this technique has been developed which will permit detailed profiling of the polarization distribution in a thin-film electroded ferroelectric layer on a substrate, such as a ferroelectric memory. The theory of the technique is discussed and it is shown that the determination of the polarization distributions requires the solution of a Fredholm integral equation of the 1st kind using experimental data. A novel method of solution of this problem using neural networks is described.
| Original language | English |
|---|---|
| Pages (from-to) | 119-126 |
| Number of pages | 8 |
| Journal | Integrated Ferroelectrics |
| Volume | 27 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 1999 |
| Event | The 11th International Symposium on Integrated Ferroelectrics (ISIF99) - Colorado Springs, CO, USA Duration: 7 Mar 1999 → 10 Mar 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Control and Systems Engineering
- Ceramics and Composites
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry