TITLE

Dual lattice photonic-crystal beam splitters

AUTHOR(S)
Wu, Lijun; Mazilu, M.; Gallet, J.-F.; Krauss, T. F.
PUB. DATE
May 2005
SOURCE
Applied Physics Letters;5/23/2005, Vol. 86 Issue 21, p211106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Light propagation in photonic crystals (PhC) is both sensitive to incident angle and wavelength. By combining two different PhC lattices, we utilize this effect to demonstrate a wavelength-dependent beam splitter with enhanced angular separation. The first lattice acts as a superprism that separates the incoming light according to wavelength, whereas the second lattice acts as an angular amplifier. We obtain 90° angular separation for two wavelengths separated by 70 nm (1300 nm regime) in a structure that is less than 10 μm long.
ACCESSION #
17226926

 

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