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Proceedings Paper

Impedance mismatch approach for a near-field superlens with intrinsic loss of absorption
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Paper Abstract

Ag slab near-field superlens (NFSL) has been much attractive issue due to their application of nano-imaging by the resolution beyond the diffraction limits. Although it has the advantages as sub-wavelength imaging tools, Ag NFSL always suffers from image blurring due to the intrinsic absorption loss, which prevent the ideal reconstruction of nanoimaging. In this research, through the analysis of focal property using the FDTD, we recognized that the impedance mismatched Ag NFSL is useful as the phase corrected optical components in the near-field. As a result, the significant enhanced of visibility, depth of field, and resolving capability is achieved in the mismatched Ag NFSL imaging system.

Paper Details

Date Published: 9 February 2009
PDF: 7 pages
Proc. SPIE 7218, Integrated Optics: Devices, Materials, and Technologies XIII, 72180K (9 February 2009); doi: 10.1117/12.809963
Show Author Affiliations
Kwangchil Lee, Yonsei Univ. (Korea, Republic of)
Kyoungsik Kim, Yonsei Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7218:
Integrated Optics: Devices, Materials, and Technologies XIII
Jean-Emmanuel Broquin; Christoph M. Greiner, Editor(s)

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