Temperature effect on the bandgaps of surface and bulk acoustic waves in two-dimensional phononic crystals

Author

Huang, Zi-Gui ; Wu, Tsung-Tsong

Author_Institution

Inst. of Appl. Mechanics, Nat. Taiwan Univ., Taipei, Taiwan

Volume

52

Issue

3

fYear

2005

fDate

3/1/2005 12:00:00 AM

Firstpage

365

Lastpage

370

Abstract

In this paper, we analyzed the temperature effect on two-dimensional phononic crystals. Bandgap variations of both of the bulk modes and surface modes due to changing of temperature in an air/quartz band structure from 0 to 50/spl deg/C were calculated and discussed. The results show that the elastic bandgaps can be enlarged or reduced by adjusting the temperature of the band structure. The temperature effects potentially can be used for fine-tuning of the phononic bandgap frequency.

Keywords

energy gap; phonons; surface acoustic waves; 0 to 50 degC; air-quartz band structure; bulk acoustic waves; bulk modes; elastic bandgaps; phononic bandgap frequency; surface acoustic waves; surface modes; temperature effect; two-dimensional phononic crystals; Acoustic propagation; Acoustic waves; Anisotropic magnetoresistance; Crystals; Ferroelectric materials; Periodic structures; Photonic band gap; Polarization; Surface acoustic waves; Temperature;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2005.1417258

Filename

1417258