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Simulating the focusing of light onto 1D nanostructures with a B-spline modal method

  • P. Bouchon
  • , P. Chevalier
  • , S. Héron
  • , F. Pardo
  • , J. L. Pelouard
  • , R. Haïdar
  • ONERA Office National d'Etudes et Recherches Aerospatiales
  • Centre national de la recherche scientifique

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Focusing the light onto nanostructures thanks to spherical lenses is a first step to enhance the field, and is widely used in applications, in particular for enhancing non-linear effects like the second harmonic generation. Nonetheless, the electromagnetic response of such nanostructures, which have subwavelength patterns, to a focused beam can not be described by the simple ray tracing formalism. Here, we present a method to compute the response to a focused beam, based on the B-spline modal method. The simulation of a gaussian focused beam is obtained thanks to a truncated decomposition on plane waves computed on a single period, which limits the computation burden.

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXIII
EditorsBernd Witzigmann, Yasuhiko Arakawa, Fritz Henneberger, Marek Osinski
PublisherSPIE
ISBN (Electronic)9781628414479
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes
Event23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices - San Francisco, United States
Duration: 9 Feb 2015 → 12 Feb 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9357
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference23rd SPIE Conference on Physics and Simulation of Optoelectronic Devices
Country/TerritoryUnited States
CitySan Francisco
Period9/02/15 → 12/02/15

Keywords

  • B-splines
  • Subwavelength gratings
  • conical mounting
  • focusing
  • modal method
  • non-linear response
  • sparse matrices

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