Elimination of phase singularity to achieve superresolution in lossy metamaterials.
Journal Article
The presence of absorption losses softens the singular behavior of transmission resonances and leads to a good image in spite of limited effective spatial frequency range. Nonetheless, we found that the phase singularity does not disappear despite the considerably reduced retardation effects by softening the transmission resonances. Because the phase singularity severely deteriorates the ideal image reconstruction, broad transmission bandwidth in spatial frequency domain is not sufficient enough to achieve superresolution in TiO(2) thin film lens. The present work predicts successful elimination of the phase singularity and the achievement of approximately lambda /12.9 superresolution in TiO(2) thin film lens through the phase correction method.
Full Text
Duke Authors
Cited Authors
- Lee, K; Jung, Y; Padilla, WJ; Kim, K
Published Date
- June 2010
Published In
Volume / Issue
- 18 / 12
Start / End Page
- 12269 - 12276
PubMed ID
- 20588351
Pubmed Central ID
- 20588351
Electronic International Standard Serial Number (EISSN)
- 1094-4087
International Standard Serial Number (ISSN)
- 1094-4087
Digital Object Identifier (DOI)
- 10.1364/oe.18.012269
Language
- eng