Toward superlensing with metal-dielectric composites and multilayers

Author

• R B. Nielsen, Purdue University - Main CampusFollow
• Mark D. Thoreson, Birck Nanotechnology Center, Purdue UniversityFollow
• W Chen, Purdue University - Main Campus
• A Kristensen, Tech Univ Denmark
• J M. Hvam, Tech Univ Denmark
• V. M. Shalaev, Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue UniversityFollow
• Alexandra Boltasseva, Birck Nanotechnology Center, Purdue UniversityFollow

Abstract

We report on the fabrication of two types of adjustable, near-field superlens designs: metal-dielectric composites and metal-dielectric multilayer films. We fabricated a variety of films with different materials, thicknesses and compositions. These samples were characterized physically and optically to determine their film composition, quality, and optical responses. Our results on metal-dielectric composites indicate that although the real part of the effective permittivity generally follows effective medium theory predictions, the imaginary part does not and substantially higher losses are observed. Going forward, it appears that multilayer metal-dielectric designs are more suitable for sub-diffraction imaging applications because they could provide both tunability and low loss.

Comments

Nielsen, R.B., Thoreson, M.D., Chen, W. et al. Appl. Phys. B (2010) 100: 93. doi:10.1007/s00340-010-4065-z

Keywords

OPTICAL-PROPERTIES; NEAR-FIELD; LAYER; NANOPARTICLES; SUBSTANCES; INDEX; FILMS

DOI

10.1007/s00340-010-4065-z

Citation

Nielsen, R.B., Thoreson, M.D., Chen, W. et al. Appl. Phys. B (2010) 100: 93. doi:10.1007/s00340-010-4065-z

Date of this Version

7-2010

Recommended Citation

Nielsen, R B.; Thoreson, Mark D.; Chen, W; Kristensen, A; Hvam, J M.; Shalaev, V. M.; and Boltasseva, Alexandra, "Toward superlensing with metal-dielectric composites and multilayers" (2010). Birck and NCN Publications. Paper 708.
http://dx.doi.org/10.1007/s00340-010-4065-z