Abstract

Numerical solution of integral equations is used to explore the effects of material parameters and groove geometry on diffraction-grating performance. The material parameters are studied by first developing and verifying a surface-impedance model. The parameter values characteristic of good metals in the infrared regions indicate that the conductivity effects are of little significance. Small changes of groove shape produce relatively large changes of the grating response, implying that construction tolerances are quite important. Specific data on Brewster-angle effects and resonant anomalies are presented and suggestions are made for both the use and control of these physical effects.

© 1973 Optical Society of America

Analysis of diffraction gratings by finite-difference coupling technique

H. A. Kalhor and M. K. Moaveni
J. Opt. Soc. Am. 63(12) 1584-1588 (1973)

Theory of diffraction efficiency and anomalies of shallow metal gratings of finite conductivity

Kenji Utagawa
J. Opt. Soc. Am. 69(2) 333-343 (1979)

Numerical Method for the Analysis of Diffraction Gratings*

H. A. Kalhor and A. R. Neureutther
J. Opt. Soc. Am. 61(1) 43-48 (1971)

Asymmetry and blazing effects in corrugated structures*

R. J. Ikola, A. Hessel, and T. Tamir
J. Opt. Soc. Am. 63(4) 408-415 (1973)

Calculation of diffraction efficiency in hologram gratings attenuated along the direction perpendicular to the grating vector

Naoya Uchida
J. Opt. Soc. Am. 63(3) 280-287 (1973)