Suppression of circular Bragg phenomenon in tilt-modulated chiral-sculptured thin films at oblique incidence

Zahir Muhammad; Qaisar  A. Naqvi; Muhammad Faryad

doi:10.1117/1.OE.53.11.117110

25 November 2014 Suppression of circular Bragg phenomenon in tilt-modulated chiral-sculptured thin films at oblique incidence

Zahir Muhammad, Qaisar A. Naqvi, Muhammad Faryad

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 117110 (November 2014). https://doi.org/10.1117/1.OE.53.11.117110

Abstract

By using a piecewise uniform approximation method, the reflectance and transmittance of light for an obliquely incident circularly polarized plane wave on a tilt-modulated chiral sculptured thin film (STF) were computed. The circular Bragg phenomenon was found to vanish when the amplitude of the modulation was high enough for oblique incidence. The tilt-modulated chiral STF then acts like a conventional mirror in the Bragg regime.

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Zahir Muhammad, Qaisar A. Naqvi, and Muhammad Faryad "Suppression of circular Bragg phenomenon in tilt-modulated chiral-sculptured thin films at oblique incidence," Optical Engineering 53(11), 117110 (25 November 2014). https://doi.org/10.1117/1.OE.53.11.117110

Published: 25 November 2014

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