Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Diffractionless propagation of light in a low-index photonic-crystal film

: Iliew, R.; Etrich, C.; Peschel, U.; Lederer, F.; Augustin, M.; Fuchs, H.-J.; Schelle, D.; Kley, E.-B.; Nolte, S.; Tünnermann, A.

DOI: 10.1063/1.1830675

	Applied Physics Letters 85 (2004), No.24, pp.5854-5856 ISSN: 0003-6951 ISSN: 1077-3118

	English
	Journal Article
	Fraunhofer IOF ()
	silicon compound; photonic crystal; photonic band gap; optical loss; diffractionless propagation

Abstract
We experimentally demonstrate diffractionless propagation of light over 12 diffraction lengths in a two-dimensional photonic crystal film made of silicon nitride (SiNx). We show that self-guided beams may propagate for transverse electric (TE) and transverse magnetic (TM) polarized light but at slightly different frequencies. Three-dimensional calculations are used to optimize the structure for low loss and narrow beam operation in this low-index photonic crystals. Experimental and theoretical results are in good agreement.

: http://publica.fraunhofer.de/documents/N-26748.html