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Controlled angular redirection of light via nanoimprinted disordered gratings |
Applied Optics, Vol. 52, Issue 4, pp. 709-716 (2013)
http://dx.doi.org/10.1364/AO.52.000709
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Abstract
Enhanced control of diffraction through transparent substrates is achieved via disordered gratings in a silica sol–gel film. Tailoring the degree of disorder allows tuning of the diffractive behavior from discrete orders into broad distributions over large angular range. Gratings of optical quality are formed by silica sol–gel nanoimprint lithography and an optical setup for the measurement of continuous diffraction patterns is presented. Sound agreement is found between measurements and simulation, validating both the approach for redirection of light and the fabrication process. The disordered gratings are presented in the context of improved interior daylighting and may furthermore be suited to a wide variety of applications where controlled angular redirection of light is desired.
© 2013 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(220.4241) Optical design and fabrication : Nanostructure fabrication
(080.4298) Geometric optics : Nonimaging optics
(310.6628) Thin films : Subwavelength structures, nanostructures
ToC Category:
Diffraction and Gratings
History
Original Manuscript: September 18, 2012
Manuscript Accepted: November 1, 2012
Published: January 30, 2013
Citation
Thomas Buß, Jérémie Teisseire, Simon Mazoyer, Cameron L. C. Smith, Morten Bo Mikkelsen, Anders Kristensen, and Elin Søndergård, "Controlled angular redirection of light via nanoimprinted disordered gratings," Appl. Opt. 52, 709-716 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-4-709
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