Abstract
The lens effect of acoustic waves in a two-dimensional (2D) phononic crystal is studied by numerical simulation based on the finite-difference time-domain (FDTD) method. We calculate the phonon band structure of 2D phononic crystals, consisting of metal/ceramic cylinders placed periodically in water. The lens effect is observed for the far-field wave in phononic crystals with two-layered and graded-index structure. We compare the focal intensity and the energy transmission efficiency in these numerical experiments, and show that a novel energy-transmission device can be designed using phononic crystals.
| Original language | English |
|---|---|
| Pages (from-to) | 22-27 |
| Number of pages | 6 |
| Journal | Electronics and Communications in Japan |
| Volume | 97 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2014 |
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Keywords
- acoustic lens
- energy transmission
- FDTD simulation
- phononic crystal
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
- Physics and Astronomy(all)
- Signal Processing
- Applied Mathematics
Cite this
Phononic-crystal acoustic lens by design for energy-transmission devices. / Kanno, Yusuke; Tsuruta, Kenji; Fujimori, Kazuhiro; Fukano, Hideki; Nogi, Shigeji.
In: Electronics and Communications in Japan, Vol. 97, No. 1, 01.2014, p. 22-27.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phononic-crystal acoustic lens by design for energy-transmission devices
AU - Kanno, Yusuke
AU - Tsuruta, Kenji
AU - Fujimori, Kazuhiro
AU - Fukano, Hideki
AU - Nogi, Shigeji
PY - 2014/1
Y1 - 2014/1
N2 - The lens effect of acoustic waves in a two-dimensional (2D) phononic crystal is studied by numerical simulation based on the finite-difference time-domain (FDTD) method. We calculate the phonon band structure of 2D phononic crystals, consisting of metal/ceramic cylinders placed periodically in water. The lens effect is observed for the far-field wave in phononic crystals with two-layered and graded-index structure. We compare the focal intensity and the energy transmission efficiency in these numerical experiments, and show that a novel energy-transmission device can be designed using phononic crystals.
AB - The lens effect of acoustic waves in a two-dimensional (2D) phononic crystal is studied by numerical simulation based on the finite-difference time-domain (FDTD) method. We calculate the phonon band structure of 2D phononic crystals, consisting of metal/ceramic cylinders placed periodically in water. The lens effect is observed for the far-field wave in phononic crystals with two-layered and graded-index structure. We compare the focal intensity and the energy transmission efficiency in these numerical experiments, and show that a novel energy-transmission device can be designed using phononic crystals.
KW - acoustic lens
KW - energy transmission
KW - FDTD simulation
KW - phononic crystal
UR - http://www.scopus.com/inward/record.url?scp=84890031051&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890031051&partnerID=8YFLogxK
U2 - 10.1002/ecj.11491
DO - 10.1002/ecj.11491
M3 - Article
AN - SCOPUS:84890031051
VL - 97
SP - 22
EP - 27
JO - Electronics and Communications in Japan
JF - Electronics and Communications in Japan
SN - 1942-9533
IS - 1
ER -