Vol. 2, No. 8, 2007

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Stark ladder resonances in acoustic waveguides

Guillermo Monsivais and Raul Esquivel-Sirvent

Vol. 2 (2007), No. 8, 1585–1590
Abstract

We present a theoretical study on how to obtain a Wannier–Stark ladder in the transmission spectra of an acoustic wave traveling through a waveguide of variable cross section. Starting from Webster’s equation for the acoustic pressure, we derive the necessary conditions to obtain the Wannier–Stark ladder. Furthermore, we present a numerical calculation for the transmission spectra when a Wannier–Stark ladder is present. This ladder is characterized by a family of well defined peaks, equidistant in frequency.

Keywords
Stark, acoustic, resonances
Milestones
Received: 18 July 2006
Accepted: 20 April 2007
Published: 1 October 2007
Authors
Guillermo Monsivais
Instituto de Fisica
Universidad Nacional Autónoma de México
Apdo. Postal 20-364
Distrito Federal, 01000
Mexico
Raul Esquivel-Sirvent
Instituto de Fisica
Universidad Nacional Autónoma de México
Apdo. Postal 20-364
Distrito Federal, 01000
Mexico