EFFICIENCY OF ULTRASOUND SELF-ACTION IN THE SUBTRANSITION PHASE OF A LIQUID-CRYSTAL

Authors
LYAKHOV GA UMNOVA OV
Citation
Ga. Lyakhov et Ov. Umnova, EFFICIENCY OF ULTRASOUND SELF-ACTION IN THE SUBTRANSITION PHASE OF A LIQUID-CRYSTAL, Acoustical physics, 40(2), 1994, pp. 286-287
Citations number
5
Categorie Soggetti
Acoustics
Journal title
Acoustical physics → ACNP
ISSN journal
10637710
Volume
40
Issue
2
Year of publication
1994
Pages
286 - 287
Database
ISI
SICI code
1063-7710(1994)40:2<286:EOUSIT>2.0.ZU;2-P
Abstract
The feasibility of observing the thermal self-action of ultrasound in the isotropic phase of a liquid crystal near the ''nematic liquid'' ph ase transition is evaluated. The process of thermal self-bleaching is shown to dominate in MBBA crystals at moderate levels of ultrasound in put intensity, which increases the ultrasound penetration depth by mor e than an order of a magnitude.