Super-lensing effect of TiO2 NFSL in the mid IR regime

Kwangchil Lee, Youngjean Jung, Kyoungsik Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Recently, the near-field superlens (NFSL) has been used as a suitable material for the super-resolution beyond the diffraction limits. These NFSL materials in the nature, such as metals and polar dielectric crystals, usually have intrinsic absorption loss in the Re(ε) < 0 region. In the imaging system, such absorption loss decreases the retardation effects by softening the singularity of transmission resonances, but it does not remove the phase singularity that severely deteriorates the ideal image restoration. Because of this problem, TiO2 thin film cannot still have sufficient band of spatial frequency for the super-resolution in the mid IR regime. In this research, we report the achievement superresolution in TiO2 NFSL by elimination of the phase singularity based on the phase correction method.

Original languageEnglish
Title of host publicationMetamaterials
Subtitle of host publicationFundamentals and Applications III
Publication statusPublished - 2010
EventMetamaterials: Fundamentals and Applications III - San Diego, CA, United States
Duration: 2010 Aug 12010 Aug 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherMetamaterials: Fundamentals and Applications III
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Super-lensing effect of TiO2 NFSL in the mid IR regime'. Together they form a unique fingerprint.

Cite this