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Autor:
Lee, Sam Hyeon, Wright, Oliver B.
Publikováno v:
Phys. Rev. B 93, 024302, 2016
This paper provides a review and fundamental physical interpretation for the effective densities and moduli of acoustic metamaterials. We introduce the terminology of hidden force and hidden source of volume: the effective density or modulus is negat
Externí odkaz:
http://arxiv.org/abs/1509.04094
Autor:
Seo, Yong Mun, Park, Jong Jin, Lee, Seung Hwan, Park, Choon Mahn, Kim, Chul Koo, Lee, Sam Hyeon
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 exhibits three frequencies where the acoustic state m
Externí odkaz:
http://arxiv.org/abs/1102.1767
Publikováno v:
Phys. Rev. Lett. 104, 054301 (2010)
We report observation of reverse Doppler effect in a double negative acoustic metamaterial. The metamaterial exhibited negative phase velocity and positive group velocity. The dispersion relation is such that the wavelength corresponding to higher fr
Externí odkaz:
http://arxiv.org/abs/0901.2772
Publikováno v:
Phys. Lett. A 373 (2009) 4464-4469
We report theoretical and experimental results for a new type of homogenized acoustic metamaterials with negative effective mass density. We constructed one-dimensional metamaterial, which is a tube with an array of very thin elastic membranes placed
Externí odkaz:
http://arxiv.org/abs/0812.2954
Publikováno v:
J. Phys.: Condens. Matter 21(2009) 175704
We present experimental and theoretical results on an acoustic metamaterial that exhibits negative effective modulus in a frequency range from 0 to 450 Hz. One-dimensional acoustic metamaterial with an array of side holes on a tube was fabricated. We
Externí odkaz:
http://arxiv.org/abs/0812.2952
Publikováno v:
Phys.Rev.D57:7023-7026,1998
We study the potential impacts of a new type of particle collider -- an $e\mu$ collider -- on the search for new physics beyond the Standard Model. As our first attempt for exploring its physics potential, we demonstrate that the the $e\mu$ collision
Externí odkaz:
http://arxiv.org/abs/hep-ph/9707483
Autor:
Lee, Youngil, Han, Duk-Young ∗, Lee, Donghoon, Woo, Ae Ja, Lee, Sam Hyeon, Lee, Daeho, Kim, Young Kyu
Publikováno v:
In Carbon 2002 40(3):403-408
Autor:
Seo, Yong Mun, Park, Jong Jin, Lee, Seung Hwan, Park, Choon Mahn, Kim, Chul Koo, Lee, Sam Hyeon
Publikováno v:
Journal of Applied Physics; Jan2012, Vol. 111 Issue 2, p023504, 5p, 2 Diagrams, 1 Chart, 2 Graphs
Autor:
Lee, Jong Cheol, You, Dong Gyun, Ie, Sang Yub, Sung, Myeon Chang, Song, Ho Shik, Park, Hyun Soon, Kang, Sei Kwon, Lee, Sam Hyeon, Jeong, Kwangho, Jin Kim, Sam, Sung Kim, Chul
Publikováno v:
Journal of Applied Physics; 1/1/2002, Vol. 91 Issue 1, p221, 4p, 1 Black and White Photograph, 6 Graphs