# Brillouin Scattering from Smectic Liquid Crystals

 Title: Brillouin Scattering from Smectic Liquid Crystals Author: Liao, York; Clark, Noel A.; Pershan, Peter S. Note: Order does not necessarily reflect citation order of authors. Citation: Liao, York, Noel A. Clark, and Peter S. Pershan. 1973. Brillouin scattering from smectic liquid crystals. Physical Review Letters 30(14): 639-641. Full Text & Related Files: Liao_Brillouin.pdf (523.9Kb; PDF) Abstract: Brillouin-scattering results are reported for monodomain samples of $$\beta$$-methyl butyl p [(p-methoxy benzylidine)amino] cinnamate in both the smectic-A and -B phases. For both phases theoretical predictions are confirmed concerning the number and polarizations of the propagating hypersonic waves. We report quantitative measurements of various thermodynamic derivatives, including the coupling between density and smectic-layer spacing. We discuss preliminary evidence concerning one model of the smectic-B phase. Published Version: doi:10.1103/PhysRevLett.30.639 Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10361963 Downloads of this work: