Optical properties of cubic blue phase liquid crystal in photonic microstructures
Kamil Orzechowski , Marzena Sala-Tefelska , Marek Sierakowski , Tomasz Woliński , O. Strzezysz , Przemysław Kula
AbstractIn this work, optical properties of a cubic blue phase liquid crystal (BPLC) in photonic microstructures were investigated. The experiments were carried out in microcapillaries with different inner diameters and in a photonic crystal fiber (PCF). For the first time, white-light beam propagation through a BPLC (BP II) in a microcapillary with a 60-&x003BC;m inner diameter at a distance of 26 mm was demonstrated. Furthermore, it was conclusively shown that the cylindrical geometry and the size of its inner diameter influence BP domains orientation, which can lead to a uniform texture of the BPLC with a dominant Bragg wavelength. This study also proves that a BPLC-filled PCF provides very attractive tunable properties. It was presented that by applying an external electric field, a control of the transmitted light intensity for particular wavelengths can be achieved, depending on the input polarization. Moreover, a range of the wavelengths corresponding to low transmission appeared to be tunable, whereas for x- and y-polarized light, respectively, both narrowing (from 16 nm to 9 nm) as well widening (from 13 nm to 22 nm) of the bandgaps were observed. Finally, the obtained experimental results were found qualitatively consistent.
|Journal series||Optics Express, ISSN 1094-4087|
|Publication size in sheets||0.6|
|Keywords in English||Effective refractive index; Electric fields; Finite element method; Liquid crystal lasers; Liquid crystals; Photonic crystals|
|Score||= 140.0, 23-06-2020, ArticleFromJournal|
|Publication indicators||= 1; = 3; = 2.0; : 2017 = 1.567; : 2018 = 3.561 (2) - 2018=3.531 (5)|
|Citation count*||4 (2020-09-25)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.