Acoustic metamaterial exhibiting four different sign combinations of density and modulus

Yong Mun Seo; Jong Jin Park; Seung Hwan Lee; Choon Mahn Park; Chul Koo Kim; Sam Hyeon Lee

doi:10.1063/1.3676262

Acoustic metamaterial exhibiting four different sign combinations of density and modulus

Yong Mun Seo, Jong Jin Park, Seung Hwan Lee, Choon Mahn Park, Chul Koo Kim, Sam Hyeon Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

We fabricated a double negative acoustic metamaterial which consisted of Helmholtz resonators and membranes. Experimental data on the transmission and dispersion relation are presented. The system exhibited three frequencies where the acoustic state makes sharp transitions from density negative (ρ-NG) to double negative (DNG), modulus negative (B-NG), and double positive (DPS) in sequence with the frequency. We observed a wide range of negative refractive indexes from -0.06 to -3.7 relative to air, which will allow for new acoustic transformation techniques.

Original language	English
Article number	023504
Journal	Journal of Applied Physics
Volume	111
Issue number	2
DOIs	https://doi.org/10.1063/1.3676262
Publication status	Published - 2012 Jan 15

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF 2010-0012562).

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1063/1.3676262

Cite this

@article{485147d9538647a1bf1ea268523ef88b,

title = "Acoustic metamaterial exhibiting four different sign combinations of density and modulus",

abstract = "We fabricated a double negative acoustic metamaterial which consisted of Helmholtz resonators and membranes. Experimental data on the transmission and dispersion relation are presented. The system exhibited three frequencies where the acoustic state makes sharp transitions from density negative (ρ-NG) to double negative (DNG), modulus negative (B-NG), and double positive (DPS) in sequence with the frequency. We observed a wide range of negative refractive indexes from -0.06 to -3.7 relative to air, which will allow for new acoustic transformation techniques.",

author = "Seo, {Yong Mun} and Park, {Jong Jin} and Lee, {Seung Hwan} and Park, {Choon Mahn} and Kim, {Chul Koo} and Lee, {Sam Hyeon}",

note = "Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF 2010-0012562).",

year = "2012",

month = jan,

day = "15",

doi = "10.1063/1.3676262",

language = "English",

volume = "111",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics Publising LLC",

number = "2",

}

TY - JOUR

T1 - Acoustic metamaterial exhibiting four different sign combinations of density and modulus

AU - Seo, Yong Mun

AU - Park, Jong Jin

AU - Lee, Seung Hwan

AU - Park, Choon Mahn

AU - Kim, Chul Koo

AU - Lee, Sam Hyeon

N1 - Funding Information: This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF 2010-0012562).

PY - 2012/1/15

Y1 - 2012/1/15

N2 - We fabricated a double negative acoustic metamaterial which consisted of Helmholtz resonators and membranes. Experimental data on the transmission and dispersion relation are presented. The system exhibited three frequencies where the acoustic state makes sharp transitions from density negative (ρ-NG) to double negative (DNG), modulus negative (B-NG), and double positive (DPS) in sequence with the frequency. We observed a wide range of negative refractive indexes from -0.06 to -3.7 relative to air, which will allow for new acoustic transformation techniques.

AB - We fabricated a double negative acoustic metamaterial which consisted of Helmholtz resonators and membranes. Experimental data on the transmission and dispersion relation are presented. The system exhibited three frequencies where the acoustic state makes sharp transitions from density negative (ρ-NG) to double negative (DNG), modulus negative (B-NG), and double positive (DPS) in sequence with the frequency. We observed a wide range of negative refractive indexes from -0.06 to -3.7 relative to air, which will allow for new acoustic transformation techniques.

UR - http://www.scopus.com/inward/record.url?scp=84867086824&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867086824&partnerID=8YFLogxK

U2 - 10.1063/1.3676262

DO - 10.1063/1.3676262

M3 - Article

AN - SCOPUS:84867086824

SN - 0021-8979

VL - 111

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 2

M1 - 023504

ER -

Acoustic metamaterial exhibiting four different sign combinations of density and modulus

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this