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Angular Fourier Mapping; Highlighting lattice structures without destroying original data

Published online by Cambridge University Press:  14 March 2011

Johannes H. Kindt
Affiliation:
Department of Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USA
James B. Thompson
Affiliation:
Department of Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USA
George T. Paloczi
Affiliation:
Department of Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USANow at Department of Physics, California Institute of Technology, Pasadena, CA 91125, USA
Martina Michenfelder
Affiliation:
Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Bettye L. Smith
Affiliation:
Department of Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USADepartment of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Galen Stucky
Affiliation:
Department of Chemistry, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Daniel E. Morse
Affiliation:
Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA
Paul K. Hansma
Affiliation:
Department of Physics, University of California Santa Barbara, Santa Barbara, CA 93106, USA
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Abstract

A two-dimensional Fourier transformation, FT, is used to isolate two different lattice structures within one scanning probe microscope, SPM, image. The isolated structures are then used to create a two-color map that encodes the presence of these structures within the image. The color map is normalized in brightness and then used to color-code the original black and white SPM data. The distribution of different structures becomes obvious, while all original brightness information is preserved in this combined image.

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