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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 11 — Jun. 2, 2014
  • pp: 12971–12981

Sensitivity analysis and optimization of sub-wavelength optical gratings using adjoints

Armand C. R. Niederberger, David A. Fattal, Nicolas R. Gauger, Shanhui Fan, and Raymond G. Beausoleil  »View Author Affiliations


Optics Express, Vol. 22, Issue 11, pp. 12971-12981 (2014)
http://dx.doi.org/10.1364/OE.22.012971


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Abstract

Numerical optimization of photonic devices is often limited by a large design space the finite-differences gradient method requires as many electric field computations as there are design parameters. Adjoint-based optimization can deliver the same gradients with only two electric field computations. Here, we derive the relevant adjoint formalism and illustrate its application for a waveguide slab, and for the design of optical sub-wavelength gratings.

© 2014 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(220.4830) Optical design and fabrication : Systems design
(230.0230) Optical devices : Optical devices
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(310.6805) Thin films : Theory and design

ToC Category:
Diffraction and Gratings

History
Original Manuscript: March 31, 2014
Revised Manuscript: May 1, 2014
Manuscript Accepted: May 12, 2014
Published: May 21, 2014

Citation
Armand C. R. Niederberger, David A. Fattal, Nicolas R. Gauger, Shanhui Fan, and Raymond G. Beausoleil, "Sensitivity analysis and optimization of sub-wavelength optical gratings using adjoints," Opt. Express 22, 12971-12981 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-11-12971


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