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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 12 — Dec. 1, 2008
  • pp: 1984–1987

Object distance-independent near-field subwavelength imaging of metal waveguide arrays

Zhiwen Kang and Guo Ping Wang  »View Author Affiliations

JOSA B, Vol. 25, Issue 12, pp. 1984-1987 (2008)

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A prism-shape microlens constructed with two-dimensional nanoscale metal waveguide arrays (MWGAs) is introduced for near-field subwavelength imaging. Finite-difference time-domain numerical simulations reveal that the microlens shows interesting object distance-independent subwavelength imaging as the object distance ranges from 100 nm to 1000 nm and the concave angle of the prism-shape lens is less than 150°. The possibility of using such microlens for array microimaging is also demonstrated. The microlens may provide potential applications in nanophotonics, lithography, and superresolution imaging.

© 2008 Optical Society of America

OCIS Codes
(220.3630) Optical design and fabrication : Lenses
(230.7370) Optical devices : Waveguides
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Optical Devices

Original Manuscript: August 4, 2008
Revised Manuscript: September 15, 2008
Manuscript Accepted: September 29, 2008
Published: November 14, 2008

Zhiwen Kang and Guo Ping Wang, "Object distance-independent near-field subwavelength imaging of metal waveguide arrays," J. Opt. Soc. Am. B 25, 1984-1987 (2008)

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