Title :
High-performance integrated Fresnel lenses on oxidised silicon substrate
Author :
Valette, S. ; Morque, A. ; Mottier, P.
Author_Institution :
LETI, Commissariat Ã\xa0 l´Energie Atomique, Grenoble, France
Abstract :
We report, to our knowledge for the first time, the achievement of analogue integrated Fresnel lenses having very high performances, and the association of two such lenses. Focusing efficiencies higher than 60% have been measured on that component with a background noise lower than ¿27 dB at 1° off-axis in the focal line.
Keywords :
focusing; integrated optics; lenses; silicon; focusing efficiency; integrated Fresnel lenses; integrated optics; oxidised Si substrate;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820010
