Tunable all-optical switching in periodic structures with liquid-crystal defects

Andrey E. Miroshnichenko*, Igor Pinkevych, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    54 Citations (Scopus)


    We suggest that tunable orientational nonlinearity of nematic liquid crystals can be employed for all-optical switching in periodic photonic structures with liquid-crystal defects. We consider a one-dimensional periodic structure of Si layers with a local defect created by infiltrating a liquid crystal into a pore, and demonstrate, by solving numerically a system of coupled nonlinear equations for the nematic director and the propagating electric field, that the light-induced Freedericksz transition can lead to a sharp switching and diode operation in the photonic devices.

    Original languageEnglish
    Pages (from-to)2839-2844
    Number of pages6
    JournalOptics Express
    Issue number7
    Publication statusPublished - Apr 2006


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