Dual-band negative index metamaterial: double negative at 813nm and single negative at 772nm

Author

• Uday K. Chettiar, Purdue UniversityFollow
• Alexander V. Kildishev, Birck Nanotechnology Center, Purdue UniversityFollow
• Hsiao-Kuan Yuan, Purdue University - Main CampusFollow
• Wenshan Cai, Purdue University - Main CampusFollow
• Shumin Xiao, 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

This work is concerned with the experimental demonstration of a dual-band negative index metamaterial. The sample is double negative (showing both a negative effective permeability and a negative effective permittivity) for linearly polarized light with a wavelength between 799 and 818 nm, and the real part of its refractive index is approximately - 1.0 at 813 nm. The ratio of -Re(n) /Im(n) is close to 1.3 at 813 nm. For an orthogonal polarization, the same sample also exhibits a negative refractive index in the visible (at 772 nm). The spectroscopic measurements of the material are in good agreement with the results obtained from a finite-element electromagnetic solver for the actual geometry of the fabricated sample at both polarizations.

Date of this Version

6-15-2007

Recommended Citation

Chettiar, Uday K.; Kildishev, Alexander V.; Yuan, Hsiao-Kuan; Cai, Wenshan; Xiao, Shumin; Drachev, V. P.; and Shalaev, V. M., "Dual-band negative index metamaterial: double negative at 813nm and single negative at 772nm" (2007). Birck and NCN Publications. Paper 264.
https://docs.lib.purdue.edu/nanopub/264