Design of optical filters using uniaxial dielectric gratings for arbitrary light polarization
✍ Scribed by João Crisóstomo Weyl A. Costa; Attílio José Giarola; Nildsen Fernando Lisboa da Silva
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 122 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0895-2477
- DOI
- 10.1002/mop.1092
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✦ Synopsis
Abstract
The main objective of this paper is to show that, with the use of a one‐dimensional grating, having uniaxial dielectric anisotropy, it is possible to change the frequency of the maximum reflection transmission peak of an incident wave with a TM polarization, while maintaining the corresponding frequency of an incident TE wave fixed, without the need to change the grating geometry. This will allow the design of optical filters that are independent of the incident light polarization. A rigorous modal theory is used, such that the fields propagating in the various regions of the structure are represented as a summation of infinite models. It is shown that polarization independence is achieved by conveniently choosing the value of the grating dielectric ratio anisotropy ratio ε~xx~/ε~zz~. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 29: 86–89, 2001.