Broadband blazing with artificial dielectrics.
The efficiency of conventional diffractive optical elements with échelette-type profiles drops rapidly as the illumination wavelength departs from the blaze wavelength. We use high dispersion of artificial materials to synthesize diffractive optical elements that are blazed over a broad spectral range (approximately 1 octave) or for two different wavelengths.
Sauvan
Christophe
C
Laboratoire Charles Fabry de l'Institut d'Optique, Centre National de la Recherche Scientifique, Orsay Cedex, France. christophe.sauvan@iota.u-psud.fr
Lalanne
Philippe
P
Lee
Mane-Si Laure
MS