DocumentCode
1279191
Title
Phononic bandgaps in silicon plate with metallic pillars
Author
Pourabolghasem, Reza ; Khelif, Abdelkrim ; Eftekhar, Ali Asghar ; Mohammadi, Soheil ; Adibi, Ali
Author_Institution
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Volume
48
Issue
18
fYear
2012
Firstpage
1147
Lastpage
1148
Abstract
The existence of phononic bandgaps is shown in a phononic crystal structure composed of a silicon plate with stubbed tungsten pillars. Using the finite element method for numerical simulations, the evolution of bandgap opening with varying design parameters is studied. Several bandgaps have been observed for different lattice symmetries. It has been shown that bandgaps of up to 40% gap to mid-gap ratio can be achieved for the triangular and square lattice.
Keywords
energy gap; finite element analysis; phononic crystals; silicon; Si; W; finite element method; lattice symmetry; metallic pillar; phononic bandgap; phononic crystal structure; silicon plate; square lattice; stubbed tungsten pillar; triangular lattice;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.0382
Filename
6294568
Link To Document