C
Choon Mahn Park
Researcher at Anyang University
Publications - 11
Citations - 1238
Choon Mahn Park is an academic researcher from Anyang University. The author has contributed to research in topics: Metamaterial & Permittivity. The author has an hindex of 7, co-authored 10 publications receiving 1080 citations.
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Composite acoustic medium with simultaneously negative density and modulus.
TL;DR: In this article, the authors fabricated an acoustic composite structure consisting of a periodic array of interspaced membranes and side holes, which exhibits two critical frequencies, omega{SH} and omega{c}.
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Acoustic metamaterial with negative modulus.
TL;DR: Experimental and theoretical results on an acoustic metamaterial that exhibits a negative effective modulus in a frequency range from 0 to 450 Hz are presented and a theory is provided to explain the experimental results.
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Acoustic Metameterial with Negative Modulus
TL;DR: In this paper, the authors presented experimental and theoretical results on an acoustic metamaterial that exhibits negative effective modulus in a frequency range from 0 to 450 Hz and provided a theory to explain the experimental results.
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Amplification of acoustic evanescent waves using metamaterial slabs.
TL;DR: The construction of membrane-based two-dimensional negative-density metamaterials which exhibited remarkably small dissipation and realized a 17-fold net amplitude gain at a remote distance from the evanescent wave source.
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Reversed Doppler effect in double negative metamaterials
TL;DR: In this article, the authors observed that frequency was downshifted when the source was approaching and upshifted as the source receded, while in ordinary media wavelengths corresponding to downshifting frequencies are longer, whereas in double negative metamaterials wavelengths increase as the frequencies increase.