Generation of spiral dislocation of wave front in absorbing nematic liquid crystal
| Autor: | Mikhail Smayev, S. A. Shvetsov, I. A. Budagovsky, A. S. Zolot’ko, D. L. Korshunov, Mikhail I. Barnik |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Condensed matter physics Biaxial nematic business.industry Isotropy Physics::Optics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Vortex Condensed Matter::Soft Condensed Matter Optics Liquid crystal Condensed Matter::Superconductivity Phase (matter) Dislocation Photonics business Optical vortex |
| Zdroj: | Optics and Spectroscopy. 119:280-285 |
| ISSN: | 1562-6911 0030-400X |
| DOI: | 10.1134/s0030400x15080044 |
| Popis: | It is demonstrated that an optical beam acquires a component with spiral dislocation of wave front (optical vortex) due to passage through a layer of homeotropically aligned nematic liquid crystal with light-absorbing admixture. The vortex is formed owing to the heating of liquid crystal and transition to isotropic phase in the irradiated region, which leads to the generation of axisymmetric field distribution of director at the interface of the isotropic channel and nematic liquid crystal. |
| Databáze: | OpenAIRE |
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