Abstract
Stratified optical films have fascinating optical properties and many important applications. Here we report a theoretical study of stepwise twisted stratified anisotropic optical media. We used Fourier transform to analyze the helical component of the dielectric tensor of the media. We then used the Berreman 4 × 4 method to calculate the reflection spectrum of the media. We discovered that right-handed and left-handed helices could coexist in stepwise twisted layers, which producing a simultaneous reflection of right-handed and left-handed circularly polarized light. This feature can be used to produce films with superior reflection properties, such as high reflectance, broad bandwidth reflection and short wavelength reflection.
Subject
Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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