Light induced angular steering via Floquet-Bloch band-tunnelling in one-dimensional liquid crystalline photonic lattices

Light induced angular steering via Floquet-Bloch band-tunnelling in one-dimensional liquid crystalline photonic lattices

We investigate all-optical Zener tunnelling in electro-optically tunable arrays of identical channel waveguides in undoped nematic liquid crystals. By all-optically inducing a refractive acceleration, we demonstrate a novel technique for band-to-band tunnelling, as well as a novel approach to light...

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Veröffentlicht in:Opto-electronics review 2007-01, Vol.15 (4), p.210-214
Hauptverfasser: Fratalocchi, A., Rutkowska, K., Karpierz, M., Assanto, G.
Format: Artikel
Sprache:eng
Schlagworte:
discrete propagation
liquid crystals
photonic lattices
Zener tunnelling
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Zusammenfassung:We investigate all-optical Zener tunnelling in electro-optically tunable arrays of identical channel waveguides in undoped nematic liquid crystals. By all-optically inducing a refractive acceleration, we demonstrate a novel technique for band-to-band tunnelling, as well as a novel approach to light controlled steering and readdressing.
ISSN:1896-3757
1896-3757
DOI:10.2478/s11772-007-0022-8