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Title: Two-Dimensional Classical Wave Localization in a Third Sound System

Abstract

Patterned calcium fluoride deposited on glass creates an effective two-dimensional scatterer of third sound propagating on a thin 4He film. We have utilized a substrate with a periodic arrangement of scatterers and a substrate with a random arrangement of scatterers to investigate classical wave propagation and localization using third sound. We observe pass bands on the periodic substrate while only low frequency modes are observed in the disordered case. The presence of high frequency modes on the ordered substrate and the absence of high frequency modes on the disordered substrate indicates we are observing localization on the disordered substrate. We compare the disordered data to the two-dimensional localization theory of Cohen and Machta and find reasonable agreement.

Authors:
; ;  [1]
  1. Laboratory of Low Temperature Physics, Department of Physics, University of Massachusetts, MA 01003 (United States)
Publication Date:
OSTI Identifier:
20884822
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 850; Journal Issue: 1; Conference: LT24: 24. international conference on low temperature physics, Orlando, FL (United States), 10-17 Aug 2005; Other Information: DOI: 10.1063/1.2354691; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CALCIUM FLUORIDES; GLASS; HELIUM 4; LIQUIDS; PERIODICITY; RANDOMNESS; SOUND WAVES; SUBSTRATES; SUPERFLUIDITY; THIN FILMS; THIRD SOUND; TWO-DIMENSIONAL CALCULATIONS; WAVE PROPAGATION

Citation Formats

Luhman, D R, Herrmann, J C, and Hallock, R B. Two-Dimensional Classical Wave Localization in a Third Sound System. United States: N. p., 2006. Web. doi:10.1063/1.2354691.
Luhman, D R, Herrmann, J C, & Hallock, R B. Two-Dimensional Classical Wave Localization in a Third Sound System. United States. https://doi.org/10.1063/1.2354691
Luhman, D R, Herrmann, J C, and Hallock, R B. 2006. "Two-Dimensional Classical Wave Localization in a Third Sound System". United States. https://doi.org/10.1063/1.2354691.
@article{osti_20884822,
title = {Two-Dimensional Classical Wave Localization in a Third Sound System},
author = {Luhman, D R and Herrmann, J C and Hallock, R B},
abstractNote = {Patterned calcium fluoride deposited on glass creates an effective two-dimensional scatterer of third sound propagating on a thin 4He film. We have utilized a substrate with a periodic arrangement of scatterers and a substrate with a random arrangement of scatterers to investigate classical wave propagation and localization using third sound. We observe pass bands on the periodic substrate while only low frequency modes are observed in the disordered case. The presence of high frequency modes on the ordered substrate and the absence of high frequency modes on the disordered substrate indicates we are observing localization on the disordered substrate. We compare the disordered data to the two-dimensional localization theory of Cohen and Machta and find reasonable agreement.},
doi = {10.1063/1.2354691},
url = {https://www.osti.gov/biblio/20884822}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 850,
place = {United States},
year = {Thu Sep 07 00:00:00 EDT 2006},
month = {Thu Sep 07 00:00:00 EDT 2006}
}