Higher order modes in photonic crystal slabs

We present a detailed investigation of higher order modes in photonic crystal slabs. In such structures the resonances exhibit a blue-shift compared to an ideal two-dimensional photonic crystal, which depends on the order of the slab mode and the polarization. By fabricating a series of photonic cry...

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Veröffentlicht in:Optics express 2011-08, Vol.19 (17), p.15990-15995
Hauptverfasser: Gansch, Roman, Kalchmair, Stefan, Detz, Hermann, Andrews, Aaron M, Klang, Pavel, Schrenk, Werner, Strasser, Gottfried
Format: Artikel
Sprache:eng
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Zusammenfassung:We present a detailed investigation of higher order modes in photonic crystal slabs. In such structures the resonances exhibit a blue-shift compared to an ideal two-dimensional photonic crystal, which depends on the order of the slab mode and the polarization. By fabricating a series of photonic crystal slab photo detecting devices, with varying ratios of slab thickness to photonic crystal lattice constant, we are able to distinguish between 0th and 1st order slab modes as well as the polarization from the shift of resonances in the photocurrent spectra. This method complements the photonic band structure mapping technique for characterization of photonic crystal slabs.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.015990