Double-negative acoustic metamaterial Export

@article{citeulike:2329458, abstract = {We show here the existence of acoustic metamaterial; in which both the effective density and bulk modulus are simultaneously negative; in the true and strict sense of an effective medium. Our double-negative acoustic system is an acoustic analogue of Veselago's medium in electromagnetism; and shares many unique consequences; such as negative refractive index. The double negativity in acoustics is derived from low-frequency resonances; as in the case of electromagnetism; but the negative density and modulus are derived from a single resonance structure as distinct from electromagnetism in which the negative permeability and negative permittivity originates from different resonance mechanisms.}, author = {Li, Jensen and Chan, C. T.}, citeulike-article-id = {2329458}, citeulike-linkout-0 = {http://dx.doi.org/10.1103/PhysRevE.70.055602}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRE/v70/i5/e055602}, citeulike-linkout-2 = {http://link.aps.org/pdf/PRE/v70/i5/e055602}, day = {18}, doi = {10.1103/PhysRevE.70.055602}, journal = {Physical Review E}, keywords = {metamaterial}, month = {November}, number = {5}, pages = {055602+}, posted-at = {2008-02-04 13:10:39}, priority = {2}, publisher = {American Physical Society}, title = {Double-negative acoustic metamaterial}, url = {http://dx.doi.org/10.1103/PhysRevE.70.055602}, volume = {70}, year = {2004} }

TY - JOUR ID - citeulike:2329458 L3 - citeulike-article-id:2329458 N2 - We show here the existence of acoustic metamaterial; in which both the effective density and bulk modulus are simultaneously negative; in the true and strict sense of an effective medium. Our double-negative acoustic system is an acoustic analogue of Veselago’s medium in electromagnetism; and shares many unique consequences; such as negative refractive index. The double negativity in acoustics is derived from low-frequency resonances; as in the case of electromagnetism; but the negative density and modulus are derived from a single resonance structure as distinct from electromagnetism in which the negative permeability and negative permittivity originates from different resonance mechanisms. IS - 5 JF - Physical Review E TI - Double-negative acoustic metamaterial PB - American Physical Society VL - 70 SP - 055602 KW - metamaterial AU - Li, Jensen AU - Chan, CT PY - 2004/11/18/ UR - http://dx.doi.org/10.1103/PhysRevE.70.055602 ER -