Advances in acoustics of liquid crystals
| Autor: | Olga Kapustina |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Acoustic field
Materials science Acoustics and Ultrasonics Condensed matter physics business.industry Theoretical models Action (physics) Condensed Matter::Soft Condensed Matter Wavelength Nonlinear system Optics Planar Arts and Humanities (miscellaneous) Liquid crystal Orientation (geometry) business |
| Zdroj: | The Journal of the Acoustical Society of America. 123:3279-3279 |
| ISSN: | 0001-4966 |
| DOI: | 10.1121/1.2933629 |
| Popis: | Advances in the fundamental problem of the orientation transition in liquid crystals produced by acoustical action are considered. The theoretical models to describe a variety of liquid crystals orientation transitions in acoustic fields for the homeotropically and planar oriented layers which were developed in the framework of the Leslie‐Ericksen hydrodynamics and the new methodology based on the ideas of non‐equilibrium thermodynamics and nonlinear hydrodynamics are discussed and are substantiated experimentally. The orientation phenomena in liquid crystals were classified and the physical factors defining a kind of transition (threshold or non‐threshold type) and a choice of approach correct to describe adequately the experimental data on a new molecular arrangement induced by acoustical action were established. Among them a macrostructure type of liquid crystals layer, a layer thickness‐viscous wavelength in liquid crystal ratio, an angle between the medium optical axe (the liquid crystal director) an... |
| Databáze: | OpenAIRE |
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