Scattered near-field and induced current of a beam wave by pits on optical disks using boundary element analysis
Article first published online: 7 DEC 2012
Copyright 1991 by the American Geophysical Union.
Volume 26, Issue 1, pages 281–289, January-February 1991
How to Cite
1991), Scattered near-field and induced current of a beam wave by pits on optical disks using boundary element analysis, Radio Sci., 26(1), 281–289, doi:10.1029/90RS01874., and (
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Accepted: 20 AUG 1990
- Manuscript Received: 3 JAN 1990
Numerical solutions of electromagnetic fields are presented for the scattering by pits and guide grooves on optical disks. The boundary element method can be applied to pit scattering of various pit forms under different conditions of the incident beam. Scattering characteristics from concave or convex pits with a section of trapezoid shapes are calculated as functions of the width or the depth (height) of pits. The maximum interference effects due to disk pits are discussed, and optimum pit shapes are found. Near-field and induced currents are also studied for different polarizations.