The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics

, Volume 5, Issue 3, pp 433–440

A Fourier optics model of two-beam scanning laser interferometers

Authors

  • A. Bergamin
    • CNR, Istituto di Metrologia “G. Colonnetti”, strada delle Cacce 73, 10135 Torino, Italy
  • G. Cavagnero
    • CNR, Istituto di Metrologia “G. Colonnetti”, strada delle Cacce 73, 10135 Torino, Italy
  • L. Cordiali
    • CNR, Istituto di Metrologia “G. Colonnetti”, strada delle Cacce 73, 10135 Torino, Italy
  • G. Mana
    • CNR, Istituto di Metrologia “G. Colonnetti”, strada delle Cacce 73, 10135 Torino, Italy

DOI: 10.1007/s100530050275

Cite this article as:
Bergamin, A., Cavagnero, G., Cordiali, L. et al. Eur. Phys. J. D (1999) 5: 433. doi:10.1007/s100530050275

Abstract:

The article illustrates the use of Fourier optics to describe the operation of two-beam scanning laser interferometers. It deals with the effect of diffraction on the spatial periodicity of a monochromatic and coherent beam. Particular attention is given to the analysis of systematic errors in high-accuracy laser metrology. The article reviews the special case of plane wave and Gaussian illuminations, examines how beam truncation affects the period of traveling fringes and presents a general relation between the relative wavelength deviation and the impulse standard deviation of the photons.

PACS. 42.25.Fx Diffraction and scattering - 42.25.Hz Interference
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© EDP Sciences, Springer-Verlag 1999