Accession Number:
ADA318756
Title:
A Real-Space, Modal-Expansion Method with the R-Matrix Propagator To Calculate Grating Diffraction.
Descriptive Note:
Interim rept. Oct 95-Sep 96,
Corporate Author:
NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
Personal Author(s):
Report Date:
1996-09-01
Pagination or Media Count:
21.0
Abstract:
Recently the R-matrix propagation algorithm has been used in conjunction with a k-space modal-expansion to calculate diffraction from gratings. The R-matrix eliminates numerical instability associated with deep gratings. We introduce here a real-space version of the modal-expansion method. A detailed numerical study of the convergence versus number of diffracted orders is given. For wavelength lambda, we consider sinusoidal gratings having height h 1.7-lambda and 17-lambda where both have period d l.7-lambda. We consider absorbing metallic and nonabsorbing dielectric gratings. Results are compared with those of other authors and with our previous results.
Subject Categories:
- Optics