A negative permeability material at red light

Author

• Hsiao-Kuan Yuan, Purdue University - Main CampusFollow
• Uday K. Chettiar, Purdue UniversityFollow
• Wenshan Cai, Purdue University - Main CampusFollow
• Alexander V. Kildishev, Birck Nanotechnology Center, Purdue UniversityFollow
• Alexandra Boltasseva, Birck Nanotechnology Center, Purdue UniversityFollow
• V. P. Drachev, Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue UniversityFollow
• V. M. Shalaev, Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue UniversityFollow

Abstract

A negative permeability in a periodic array of pairs of thin silver strips is demonstrated experimentally for two distinct samples. The effect of the strip surface roughness on negative permeability is evaluated. The first sample, Sample A, is fabricated of thinner strips with a root mean square roughness of 7 nm, while Sample B is made of thicker strips with 3-nm roughness. The real part of permeability, mu', is -1 at a wavelength of 770 nm in Sample A and -1.7 at 725 nm in Sample B. Relative to prototypes simulated with ideal strips, larger strip roughness acts to decrease vertical bar mu'vertical bar by a factor of 7.8 in Sample A versus a factor of 2.4 decrease for Sample B.

Comments

Full text here: http://www.opticsinfobase.org/oe/abstract.cfm?URI=OPEX-15-3-1076

Citation

5 February 2007 / Vol. 15, No. 3 / OPTICS EXPRESS 1076

Date of this Version

February 2007

Recommended Citation

Yuan, Hsiao-Kuan; Chettiar, Uday K.; Cai, Wenshan; Kildishev, Alexander V.; Boltasseva, Alexandra; Drachev, V. P.; and Shalaev, V. M., "A negative permeability material at red light" (2007). Birck and NCN Publications. Paper 265.
https://docs.lib.purdue.edu/nanopub/265