Optimal shape design for a layered periodic structure

Autor:	Flanagan, Michael Brady
Rok vydání:	2002
Předmět:	diffraction inverse problems optimal design scientific computation optics mathematics photonics photonic crystals level set
Druh dokumentu:	Book<br />Thesis
Popis:	A multi-layered periodic structure is investigated for optimal shape design in diffraction gratings. A periodic dielectric material is used as the scattering profile for a planar incident wave. Designing optimal profiles for scattering is a type of inverse problem. The ability to fabricate such materials on the order of the wavelength of the incoming light is key for design strategies. We compute a finite element approximation on a variational setup of the forward problem. On the inverse and optimal design problem, we discuss the stability of the designs and develop computational strategies based on a level-set evolutionary approach.
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://hdl.handle.net/1969.1/382 Zobrazit plný text záznamu