Analysis of infinitely thin dielectric gratings with surface relief

✍ Scribed by Hideaki Wakabayashi; Jiro Yamakita; Keiji Matsumoto; Masamitsu Asai

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 395 KB
• Volume: 82
• Category: Article
• ISSN: 8756-663X
• DOI: 10.1002/(sici)1520-6432(199912)82:12<38::aid-ecjb5>3.0.co;2-0

✦ Synopsis

The spectral Galerkin procedure is often used for analyzing metallic gratings which are assumed to be zerothickness plane gratings. In this report, thin surface relief dielectric gratings with complex permittivity are discussed and analyzed by using the numerical approach for metallic plane gratings with surface impedance. From numerical results for dielectric gratings by the conventional method and metallic plane gratings by the spectral Galerkin procedure, the relations between dielectric and plane gratings are investigated. In addition, some numerical results for infinitely thin gratings with various surface reliefs are given and the differences between surface profiles are investigated.