Numerical analysis scattering characteristic of the laser beam from pits on optical carrier

Andrey A. Kryuchin; Anatoly S. Lapchuk; Vladimir A. Klimenko; Viacheslav V. Petrov

doi:10.1117/12.218744

8 September 1995 Numerical analysis scattering characteristic of the laser beam from pits on optical carrier

Andrey A. Kryuchin, Anatoly S. Lapchuk, Vladimir A. Klimenko, Viacheslav V. Petrov

Proceedings Volume 2514, Optical Data Storage '95; (1995) https://doi.org/10.1117/12.218744
Event: Optical Data Storage '95, 1995, San Diego, CA, United States

Abstract

The process of optical recording on ablation mechanism carriers shows a peculiar microrelief. The peculiarity of the latter is in the presence of an annular rim around the pit, of the carrier material arising by action of surface tension. This force on the liquid phase of microregion was subjected to the thermal action of a laser beam. During reading for increasing the signal- to-noise ratio, it is necessary to achieve optimal relations for parameters of reading laser beam, and geometrical pit dimensions surrounded by the annular rim. The method of scalar theory of diffraction did not allow to investigate the influence of geometrical sizes rims of pits on scattering characteristics of the laser beam from pits. In this connection, the mathematical simulation problem of the informaiton reading process from the surface with such form of units is of current concern.

Citation Download Citation

Andrey A. Kryuchin, Anatoly S. Lapchuk, Vladimir A. Klimenko, and Viacheslav V. Petrov "Numerical analysis scattering characteristic of the laser beam from pits on optical carrier", Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); https://doi.org/10.1117/12.218744

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