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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 13 — Jun. 30, 2014
  • pp: 16048–16060

Multiple interfacing between classical ray-tracing and wave-optical simulation approaches: a study on applicability and accuracy

Claude Leiner, Wolfgang Nemitz, Susanne Schweitzer, Franz P. Wenzl, Paul Hartmann, Ulrich Hohenester, and Christian Sommer  »View Author Affiliations

Optics Express, Vol. 22, Issue 13, pp. 16048-16060 (2014)

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In this study the applicability of an interface procedure for combined ray-tracing and finite difference time domain (FDTD) simulations of optical systems which contain two diffractive gratings is discussed. The simulation of suchlike systems requires multiple FDTD↔RT steps. In order to minimize the error due to the loss of the phase information in an FDTD→RT step, we derive an equation for a maximal coherence correlation function (MCCF) which describes the maximum degree of impact of phase effects between these two different diffraction gratings and which depends on: the spatial distance between the gratings, the degree of spatial coherence of the light source and the diffraction angle of the first grating for the wavelength of light used. This MCCF builds an envelope of the oscillations caused by the distance dependent coupling effects between the two diffractive optical elements. Furthermore, by comparing the far field projections of pure FDTD simulations with the results of an RT→FDTD→RT→FDTD→RT interface procedure simulation we show that this function strongly correlates with the error caused by the interface procedure.

© 2014 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(230.0230) Optical devices : Optical devices
(350.4600) Other areas of optics : Optical engineering
(080.1753) Geometric optics : Computation methods
(050.1755) Diffraction and gratings : Computational electromagnetic methods

ToC Category:
Geometric Optics

Original Manuscript: March 31, 2014
Revised Manuscript: June 13, 2014
Manuscript Accepted: June 17, 2014
Published: June 23, 2014

Claude Leiner, Wolfgang Nemitz, Susanne Schweitzer, Franz P. Wenzl, Paul Hartmann, Ulrich Hohenester, and Christian Sommer, "Multiple interfacing between classical ray-tracing and wave-optical simulation approaches: a study on applicability and accuracy," Opt. Express 22, 16048-16060 (2014)

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