Calculation of Angular-Dependent Reflectance and Polarimetry Spectra of Nanoporous Anodic Alumina-Based Photonic Crystal Slabs

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• 作者：Zdeně ; k Krá ; l ; Luká ; š ; Vojků ; vka ; Enric Garcia-Caurel ; Josep Ferré ; -Borrull ; Lluis F. Marsal ; Josep Pallarè ; s
• 关键词：Spectroscopic polarimetry ; Photonic crystals ; Porous alumina ; Optical characterization ; Numerical simulation
• 刊名：Photonics and Nanostructures - Fundamentals and Applications
• 出版年：2009
• 出版时间：February 2009
• 年：2009
• 卷：7
• 期：1
• 页码：12-18
• 全文大小：836 K

文摘

Calculations of angular-dependent reflectance and polarimetry spectra of nanoporous anodic alumina-based two-dimensional photonic crystal slabs are presented. The calculations are obtained using a scattering matrix numerical model that gives the polarization change as a function of the incidence angle and of the wavelength. The results reveal that the incident light can couple to several modes propagating in the photonic crystal slab at different angles with respect to the sample surface, and that the number of these modes increases with increasing pore depth. Two different lattice structures are studied: triangular and square. For the triangular lattice the off-diagonal components of the Jones Matrix show a certain amount of cross-polarization, while for the square lattice, there is no cross-polarization.