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In this paper we report a new set of accurate measurements of guided mode resonances coupled in a negative photonic crystal slab. Narrow peaks are visible in the reflection spectrum with a full-width at half maximum (FWHM) of less than 2 nm. In addition to the traditional measurements of the reflected signal, we present the imaging of the coupled radiation propagating into the slab. Finally, by comparison with the already known phenomenological analysis [1] we propose a new physical model of the phenomenon. The experimental data shows an excellent agreement with mentioned theory.
International Society for Optics and Photonics
Publication date: 
7 May 2013
Biblio References: 
Volume: 8781 Pages: 87810N
Integrated Optics: Physics and Simulations