Angular dependence of surface-relief gratings for solar and lighting applications

Ties M. de Jong, Dick K.G. de Boer, Cees W.M. Bastiaansen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)

Abstract

Transmission gratings that combine a large diffraction angle with a high diffraction efficiency and low angular and wavelength dispersion can be used to concentrate sunlight in a light guide and for lighting applications. Surface-relief gratings with sub-wavelength grating periods can have these properties. In this paper we study their diffraction efficiency for general conical angles of incidence. We show the presence of regions in the space of incident angles where light is efficiently coupled into or out of total internal reflection. It is demonstrated how this distribution of the diffraction efficiency over angular space can be adjusted by changing the grating geometry. Finally, these properties are qualitatively verified using holographically produced surface relief gratings.

Original languageEnglish
Title of host publicationNonimaging Optics
Subtitle of host publicationEfficient Design for Illumination and Solar Concentration VIII
Place of PublicationBellingham
PublisherSPIE
Number of pages8
ISBN (Print)9780819487346
DOIs
Publication statusPublished - 17 Oct 2011
EventNonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII - San Diego, CA, United States
Duration: 21 Aug 201122 Aug 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8124
ISSN (Print)0277-786X

Conference

ConferenceNonimaging Optics: Efficient Design for Illumination and Solar Concentration VIII
CountryUnited States
CitySan Diego, CA
Period21/08/1122/08/11

Keywords

  • concentrators
  • diffraction gratings
  • holography
  • lighting
  • solar energy
  • Surface-relief gratings

Fingerprint

Dive into the research topics of 'Angular dependence of surface-relief gratings for solar and lighting applications'. Together they form a unique fingerprint.

Cite this