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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 5 — May. 17, 2007

Scanning near-field optical microscopy signal processing and resolution

Thomas Grosges and Dominique Barchiesi  »View Author Affiliations


Applied Optics, Vol. 46, Issue 12, pp. 2248-2255 (2007)
http://dx.doi.org/10.1364/AO.46.002248


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Abstract

To increase the signal-to-noise ratio and to remove the spatially slow varying signals, a lock-in amplifier is often used in scanning probe microscopy. The signal reconstructed from the lock-in data contains the contributions of the evanescent and homogeneous waves that are mixed in the near-field zone (i.e., at a very short distance). The resolution is determined and a method is given to suppress the useless background information. Experimental images of nanoparticles are processed.

© 2007 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(100.0100) Image processing : Image processing
(180.5810) Microscopy : Scanning microscopy

ToC Category:
Fourier Optics and Optical Signal Processing

History
Original Manuscript: August 14, 2006
Revised Manuscript: December 6, 2006
Manuscript Accepted: January 7, 2007
Published: April 3, 2007

Virtual Issues
Vol. 2, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Thomas Grosges and Dominique Barchiesi, "Scanning near-field optical microscopy signal processing and resolution," Appl. Opt. 46, 2248-2255 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-12-2248

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