White LED light coupling into light guides with diffraction gratings
Applied Optics, Vol. 45, Issue 12, pp. 2623-2630 (2006)
http://dx.doi.org/10.1364/AO.45.002623
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Abstract
Radial diffractive gratings are used to couple light of a white LED into a light guide. Theoretical coupling efficiencies are evaluated with rigorous diffraction theory in a pure conical mounting. It is shown that when the refractive index of the grating increases from 1.46 to 2.05 the incoupling efficiency increases from
© 2006 Optical Society of America
OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(230.0230) Optical devices : Optical devices
(230.1950) Optical devices : Diffraction gratings
(230.7400) Optical devices : Waveguides, slab
History
Original Manuscript: July 6, 2005
Revised Manuscript: November 18, 2005
Manuscript Accepted: November 23, 2005
Citation
Samuli Siitonen, Pasi Laakkonen, Pasi Vahimaa, Markku Kuittinen, and Noora Tossavainen, "White LED light coupling into light guides with diffraction gratings," Appl. Opt. 45, 2623-2630 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-12-2623
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