Journal
APPLIED OPTICS
Volume 40, Issue 19, Pages 3164-3168Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.40.003164
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The scaler field in the focal volume of nontelecentric apodized focusing systems cannot be accurately described by the Debye integral representation. By use of the Fresnel-Kirchhoff diffraction formula it is found that, if the aperture stop is axially displaced, the focal-volume structure is tuned. We analyze the influence of the apodizing function and find that, whereas axially superresolving pupil filters are highly sensitive to the focal-volume reshaping effect, axially apodizing filters are more inclined to the focal-shift effect. (C) 2001 Optical Society of America.
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