Emergence of acoustic and optical bands in elastic systems

被引：5

作者：

Diaz-de-Anda, A. ^{[1
]}

Flores, J. ^{[1
]}

Gutierrez, L. ^{[2
]}

Mendez-Sanchez, R. A. ^{[2
]}

Monsivais, G. ^{[1
]}

Morales, A. ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62251, Morelos, Mexico

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2013年 / 134卷 / 06期

关键词：

PERIODIC STRUCTURES; SOUND-TRANSMISSION; DIATOMIC CHAINS; TORSIONAL WAVES; FREQUENCY; MODES; RODS; ANALOGS; GAP;

D O I：

10.1121/1.4828822

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Two elastic systems are considered in this work: A special linear chain of harmonic oscillators and a quasi one-dimensional vibrating rod. Starting in both cases with a locally periodic system formed by unit cells with a single element, these cells are converted into binary cells. The acoustic and optical bands then appear. For the vibrating rod experimental values are compared with theoretical results; in particular, the normal-mode amplitudes are obtained and the agreement is excellent. (C) 2013 Acoustical Society of America.

引用

页码：4393 / 4400

页数：8

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