Interface engineering for improved light transmittance through photonic crystal flat lenses

Author

Scherrer, Geoffroy ; Hofman, Maxence ; Smigaj, Wojciech ; Gralak, Boris ; Mélique, Xavier ; Vanbésien, Olivier ; Lippens, Didier ; Dumas, Colette ; Cluzel, Benoit ; De Fornel, Frédérique

Author_Institution

Lab. Interdisciplinaire Carnot de Bourgogne (ICB), Univ. de Bourgogne, Dijon, France

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

We present photonic crystal flat lenses with interfaces engineered to improve the light transmittance thanks to a broad angles impedance matching. The interface engineering consists in the realization of antireflection gratings on the edges of the lenses which are designed to reduce the propagative waves reflectivity over a wide range of incident angles. The fabricated structures were measured in optical near-field and a four times enhancement of the light transmission efficiency is reported.

Keywords

diffraction gratings; lenses; light transmission; optical design techniques; photonic crystals; antireflection grating; broad angle impedance matching; interface engineering; light transmittance; optical near field; photonic crystal flat lenses; propagative wave reflectivity; Lenses; Optical imaging; Optical reflection; Optical refraction; Optical variables measurement; Optimized production technology; Photonic crystals;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050600

Filename

6050600