ORBi: Languy Fabian - Achromatization of solar concentrator thanks to diffractive optics

Reference : Achromatization of solar concentrator thanks to diffractive optics


	Document type :	Scientific congresses and symposiums : Unpublished conference
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/2268/31952

Title :	Achromatization of solar concentrator thanks to diffractive optics
Language :	English
Author, co-author :	Languy, Fabian [Université de Liège - ULg > Département de physique > Optique - Hololab >]
	Lenaerts, Cedric [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Loicq, Jerôme [Université de Liège - ULg > > CSL (Centre Spatial de Liège) >]
	Habraken, Serge [Université de Liège - ULg > Département de physique > Optique - Hololab - CSL (Centre Spatial de Liège) >]
Publication date :	2009
Page number :	8
Audience :	International
Event name :	2nd International Workshop on Concentrating Photovoltaic Optics and Power
Event date :	9-10 March 2009
Event organizer :	Ralf Leutz
Event place (city) :	Darmstadt
Event country :	Germany
Keywords :	[en] solar concentration ; diffractive optics ; fresnel lens
Abstract :	[en] Refractive solar concentrators suffer from important chromatic aberration. To enhance solar cell performance and increase the concentrating ratio, we propose an hybrid (diffractive/refractive) lens which allows a more uniform flux density and an achromatized (in the sense of achromatic doublet) illumination of the cell. To solve the problem of high diffraction efficiency, we turn to multilayer diffractive lenses to have broadband high diffraction efficiency optimized on solar spectrum. Rigorous coupled wave analysis simulations were performed in order to check the validity of scalar theory, they led to a new order of magnitude for the ratio period/wavelength which has been found to be around 100 in place of 10.
Research units :	Centre Spatial de Liège - CSL
Funders :	Région wallonne : Direction générale des Technologies, de la Recherche et de l'Energie - DGTRE
Name of the research project :	WALID
Target :	Researchers ; Professionals ; Students ; General public
Permalink :	http://hdl.handle.net/2268/31952
Other URL :	http://www.concentrating-pv.org/papers.html

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