Shape transformers for phononic band gaps tuning in two-dimensional Bloch-periodic lattice structures

2021 ◽  
Vol 89 ◽  
pp. 104278 ◽  
Author(s):  
Victor E.L. Gasparetto ◽  
Mostafa S.A. ElSayed
Keyword(s):  
Band Gaps ◽  
Periodic Lattice ◽  
Lattice Structures ◽  
Two Dimensional ◽  
Phononic Band Gaps

The two-dimensional phononic band gaps tuned by the position of the additional rod

2007 ◽  
Vol 362 (5-6) ◽  
pp. 494-499 ◽  
Author(s):  
Yuanwei Yao ◽  
Zhilin Hou ◽  
Youyan Liu
Keyword(s):  
Band Gaps ◽  
Two Dimensional ◽  
Phononic Band Gaps

Phononic Band Gaps in Two-Dimensional Hybrid Triangular Lattice

2010 ◽  
Vol 23 (3) ◽  
pp. 255-259 ◽  
Author(s):  
Bin Wu ◽  
Ruiju Wei ◽  
Huanyu Zhao ◽  
Cunfu He
Keyword(s):  
Triangular Lattice ◽  
Band Gaps ◽  
Two Dimensional ◽  
Phononic Band Gaps

Band Gap Properties of Two-Dimensional Photonic Crystal Structures with Rectangular Lattice

2015 ◽  
Vol 36 (2) ◽  
Author(s):  
Hamed Alipour-Banaei ◽  
Somaye Serajmohammadi ◽  
Farhad Mehdizadeh ◽  
Alireza Andalib
Keyword(s):  
Band Gap ◽  
Lattice Structure ◽  
Band Gaps ◽  
The Other ◽  
Square Lattice ◽  
Rectangular Lattice ◽  
Lattice Structures ◽  
Two Dimensional ◽  
Two Dimensional Photonic Crystal ◽  
Polarization Independent

AbstractIn this paper we proposed a new structure of two-dimensional photonic crystals with rectangular lattice. After deducing the primitive lattice vectors and first Brillouin zone of the structures, we studied the band gap properties of horizontal and vertical rectangular lattice structures and compared them with conventional square lattice structure. The most excellent characteristic of these structures is their joint band gap regions, which make them suitable for designing polarization-independent devices. The other advantage of these structures is having band gaps at higher normalized frequencies.

Wave Characteristics of Two-Dimensional Hierarchical Hexagonal Lattice Structures

2013 ◽  
Vol 136 (1) ◽  
Author(s):  
Y. L. Xu ◽  
C. Q. Chen ◽  
X. G. Tian
Keyword(s):  
Lattice Structure ◽  
Hexagonal Lattice ◽  
Low Frequency ◽  
Hierarchical Structures ◽  
Wave Mode ◽  
Periodic Lattice ◽  
Lattice Structures ◽  
Two Dimensional ◽  
Dispersion Surface ◽  
Mode Dispersion

Hierarchical structures are structures that themselves contain structural elements. Hierarchical lattice structures are counterparts of the traditional lattice structures, whose walls are replaced by some kind of structure. In this paper, wave propagation in two-dimensional hierarchical hexagonal lattice structures is calculated by the finite element method with the Bloch theory. Attention is devoted to the comparison of the band gap, wave mode, dispersion surface, and phase and group velocities between the second-order hierarchical hexagonal lattice structures and their first-order traditional counterpart. The results show that the former structures have more band gaps and similar isotropic wave behavior in the low frequency compared to the latter structure. The structure hierarchy is favorable for the periodic lattice structure to filtering or guiding wave at some circumstances to meet the demands of engineering.

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