Near-field, broadband optical spectroscopy of metamaterials

Author

• Reuben Bakker, Purdue University - Main CampusFollow
• V. P. Drachev, Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue UniversityFollow
• Hsiao-Kuan Yuan, Purdue University - Main CampusFollow
• V. M. Shalaev, Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue UniversityFollow

Abstract

Near-field, broadband optical spectroscopy of metamaterials is reported. A compact, easy to assemble supercontinuum light source, coupled with a near-field scanning optical microscope and spectrometer provide the means to locally probe the spectral response of a nanorod metamaterial sample. Spectral maps of near-field transmittance are obtained for the spectral range from 500 to 950 nm. In comparison to far-field measurement, the average of the near-field mappings shows a significant increase in transmittance. The uniqueness of the spectral maps and the increased transmittance indicates a strong nanoantenna effect between the sample and the plasmonic near-field aperture.

Date of this Version

5-15-2007

Recommended Citation

Bakker, Reuben; Drachev, V. P.; Yuan, Hsiao-Kuan; and Shalaev, V. M., "Near-field, broadband optical spectroscopy of metamaterials" (2007). Birck and NCN Publications. Paper 263.
https://docs.lib.purdue.edu/nanopub/263