Scalar diffraction field calculation from curved surfaces via Gaussian beam decomposition
Journal of the Optical Society of America A: Optics and Image Science, and Vision
Optical Society of America
1459 - 1469
Item Usage Stats
We introduce a local signal decomposition method for the analysis of three-dimensional (3D) diffraction fields involving curved surfaces. We decompose a given field on a two-dimensional curved surface into a sum of properly shifted and modulated Gaussian-shaped elementary signals. Then we write the 3D diffraction field as a sum of Gaussian beams, each of which corresponds to a modulated Gaussian window function on the curved surface. The Gaussian beams are propagated according to a derived approximate expression that is based on the Rayleigh-Sommerfeld diffraction model. We assume that the given curved surface is smooth enough that the Gaussian window functions on it can be treated as written on planar patches. For the surfaces that satisfy this assumption, the simulation results show that the proposed method produces quite accurate 3D field solutions.
Three dimensional computer graphics
Published Version (Please cite this version)http://dx.doi.org/10.1364/JOSAA.29.001459
Showing items related by title, author, creator and subject.
The effect of growth conditions on the optical and structural properties of InGaN/GaN MQW LED structures grown by MOCVD Cetđn, S.; Sağlam, S.; Ozcelđk, S.; Özbay, Ekmel (Gazi University Eti Mahallesi, 2014)Five period InGaN/GaN MQW LED wafers were grown by low pressure MOCVD on an AlN buffer layer, which was deposited on a c-plane (0001)-faced sapphire substrate. The effect of growth conditions, such as the well growth time, ...
Synthesis of blue-shifted luminescent colloidal GaN nanocrystals through femtosecond pulsed laser ablation in organic solution Demirel, A.; Öztaş T.; Kurşungöz, C.; Yılmaz, İ.; Ortaç, B. (Springer Netherlands, 2016-05)We demonstrate the synthesis of GaN nanocrystals (NCs) with the sizes of less than the doubled exciton Bohr radius leading quantum confinement effects via a single-step technique. The generation of colloidal GaN nanoparticles ...
Two types of single-beam deflection and asymmetric transmission in photonic structures without interface corrugations Serebryannikov, A. E.; Colak, E.; Magath, T.; Özbay, Ekmel (Optical Society of America, 2016)We study single-beam deflection and asymmetry in transmission, two aspects of the same phenomenon that appear in the topologically simple, nonsymmetric, photonic crystal (PhC)-based structures without corrugations at the ...