C
Chul Koo Kim
Researcher at Yonsei University
Publications - 125
Citations - 2934
Chul Koo Kim is an academic researcher from Yonsei University. The author has contributed to research in topics: Metamaterial & Schrödinger picture. The author has an hindex of 23, co-authored 125 publications receiving 2625 citations. Previous affiliations of Chul Koo Kim include Kyung Hee University & LG Electronics.
Papers
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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 density
TL;DR: In this paper, a one-dimensional acoustic metamaterial with negative effective density using an array of very thin elastic membranes was fabricated, and the authors reported direct observation of negative acceleration in this acoustic medium below 735 Hz.
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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.