Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3300824
Keywords
crystal defects; liquid crystals; liquid structure; photonic crystals; silicon compounds; titanium compounds
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Funding
- Australian Research Council [DP0771218]
- France-Australia cooperation [21337]
- Australian Research Council [DP0771218] Funding Source: Australian Research Council
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We demonstrate how to achieve reversible nonreciprocal optical response in a periodic photonic structure with a pair of defects, one of them being a nonlinear liquid crystal defect layer. The twin defect structure is symmetric at low intensity and becomes asymmetric above an intensity threshold that corresponds to the optical reordering of the liquid crystal. We show that nonreciprocal effects can be reversed by changing the wavelength as a consequence of the wavelength dependent light localization at the defect mode inside the structure.
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