99% efficiency measured in the -1st order of a resonant grating | Zendy

Nathalie Destouches | Zendy; A.V. Tishchenko | Zendy; J.C. POMMIER | Zendy; Stéphanie Reynaud | Zendy; Ο. Parriaux | Zendy; S. Tonchev | Zendy; Marwan Abdou Ahmed | Zendy

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99% efficiency measured in the -1st order of a resonant grating

Author(s) -

Nathalie Destouches,

A.V. Tishchenko,

J.C. POMMIER,

Stéphanie Reynaud,

Ο. Parriaux,

S. Tonchev,

Marwan Abdou Ahmed

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.003230

Subject(s) - diffraction efficiency , optics , grating , materials science , diffraction grating , diffraction , guided mode resonance , dielectric , blazed grating , wavelength , ultrasonic grating , refractive index , layer (electronics) , optoelectronics , physics , composite material

A resonant diffraction grating comprising a mirror, a dielectric layer and a high index corrugation at the layer-air interface is shown to exhibit off-Littrow the record diffraction efficiency of 99% in the -1st reflected order at 1064 nm wavelength thanks to the excitation of a leaky mode of the layer. Such high figure is obtained by a grating 5 to 10 times shallower than in current attempts to realize high efficiency all-dielectric gratings.

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