Influence of photopolymerization on propagation properties of photonic crystal fiber infiltrated with liquid crystal mixture


  • Marta Kajkowska Warsaw University of Technology
  • Miłosz Chychłowski Warsaw University of Technology
  • Piotr Lesiak Warsaw University of Technology



liquid crystal, polymer, photonic crystal fiber


In this paper we analyze the influence of the photopolymerization process on propagation properties of photonic crystal fiber infiltrated with liquid crystal doped with a mixture of reactive monomer and photoinitiator. The obtained results showed changes in photonic band gap of the fiber due to refractive index change of the liquid crystal mixture caused by the polymerization process. Moreover, the research demonstrated the possibility of preserving the desired molecular orientation of liquid crystal initially stabilized by placing the sample in the external electric field. This was achieved by simultaneously irradiating the sample and controlling the orientation of liquid crystal molecules with the electric field. The spectral analysis of the polymerized sample showed no visible difference in propagation spectra when the electric field was turned off after the process was finished.

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How to Cite

M. Kajkowska, M. Chychłowski, and P. Lesiak, “Influence of photopolymerization on propagation properties of photonic crystal fiber infiltrated with liquid crystal mixture”, Photonics Lett. Pol., vol. 14, no. 3, pp. 68–70, Sep. 2022.