Numerical study of The Remittances of Axially Excited Chiral Sculptured Zirconia Thin Films - Physics > OpticsReport as inadecuate




Numerical study of The Remittances of Axially Excited Chiral Sculptured Zirconia Thin Films - Physics > Optics - Download this document for free, or read online. Document in PDF available to download.

Abstract: The transmission and reflection spectra from a right-handed chiral sculpturedzirconia thin film are calculated using the coupled wave theory and theBruggeman homogenization formalism in conjunction with the experimental datafor the relative dielectric constant of zirconia thin film. The dielectricdispersion function effect on these spectra appeared in wavelengths shorterthan the Bragg wavelength. In wavelengths larger than the Bragg wavelength, thedispersion of the dielectric function can be ignored. The results achieved inthis work are consistent with the experimental data Wu et al. 2000. A shifttowards shorter wavelengths is observed for the Bragg peak with increasing thevoid fraction, which is in agreement with the theoretical work of Lakhtakia2000. Sorge et al. 2006 also found this effect in their experimentalresults on TiO2 chiral thin films, while they also found that unlike ourresults the intensity of the reflectance of the Bragg peak decreases withincreasing the void fraction. This difference between our theoretical work andSorge et al. 2006 experimental work can be related to the structuraldifference between idealized theoretical model for chiral films and thatobtained in experimental work. In the latter, as Sorge et al. 2006 havepointed out the experimental films exhibit a large amount of scattering due tothe highly complex and non-ideal structure that the individual chiral elementsexhibit.



Author: Ferydon Babaei, Hadi Savaloni

Source: https://arxiv.org/







Related documents