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Applied Optics

Applied Optics


  • Vol. 44, Iss. 17 — Jun. 10, 2005
  • pp: 3429–3437

Design of metal-cladded near-field fiber probes with a dispersive body-of-revolution finite-difference time-domain method

Liu Liu and Sailing He  »View Author Affiliations

Applied Optics, Vol. 44, Issue 17, pp. 3429-3437 (2005)

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A dispersive body-of-revolution finite-difference time-domain method is developed to simulate metal-cladded near-field scanning optical microscope (NSOM) probes. Two types of NSOM probe (aperture and plasmon NSOM probes) are analyzed and designed with this fast method. The influence of the metal-cladding thickness and the excitation mode on the performance of the NSOM probes is studied. We introduce a new scheme of illumination-mode NSOM by employing the plasmon NSOM probe with the TM01 mode excitation. Such a NSOM probe is designed, and we demonstrate its advantages over the conventional aperture NSOM probe by scanning across a metallic object.

© 2005 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(180.5810) Microscopy : Scanning microscopy
(260.2110) Physical optics : Electromagnetic optics

Liu Liu and Sailing He, "Design of metal-cladded near-field fiber probes with a dispersive body-of-revolution finite-difference time-domain method," Appl. Opt. 44, 3429-3437 (2005)

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