Optics design and simulation

The simulation of (micro) optical components is accomplished in order to optimize optical systems for laboratory or industrial use. Another goal is the calculation of diffractive surface or volume structures which realize the desired optical function. Examples are diffractive beam-shapers, photonic crystals, and grating-waveguide-structures. Programs used encompass commercial codes for ray-tracing and for electromagnetic calculations by the method of finite elements (FEM). For special applications self-developed codes are used, e. g. programs for the calculation of diffractive optical elements via the iterative Fourier-transform algorithm (IFTA) or for simulations of gratings via rigorous coupled-wave analysis (RCWA).

FEM-simulation of the field distribution of a grating-waveguide-structure	Simulation of the Raman-enhancement at a gold surface relief

Further information:

D. Schäfer
Design concepts for diffractive elements shaping partially coherent laser beams
J. Opt. Soc. Am. A 18, 2915 (2001)

I. Knorr, K. Christou, J. Meinertz, A. Selle, J. Ihlemann, G. Marowsky
Precdiction and Optimization of Surface Enhanced Raman Scattering Geometries using COMSOL Multiphysics
European COMSOL conference 2008, Hannover, Conference-CD