Dispersion versus Absorption (DISPA): Hilbert Transforms in Spectral Line Shape Analysis

  • Alan G. Marshall


Chapter 1 describes the origin and shape of a hypothetical spectral absorption signal arising from a single driven oscillator with a single natural frequency and a single relaxation time. Experimental spectra, on the other hand, often exhibit signals composed of a sum of two or more peaks of different natural frequencies and/or line widths. Most generally, one can distinguish between a superposition of lines of different position (Fig. 1a) and a superposition of lines of different width (Fig. 1b).


Electron Spin Resonance Line Shape Lorentzian Line Lorentzian Line Shape Reference Circle 
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Copyright information

© Springer Science+Business Media New York 1982

Authors and Affiliations

  • Alan G. Marshall
    • 1
  1. 1.Departments of Chemistry and BiochemistryThe Ohio State UniversityColumbusUSA

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