Apodized annular-aperture logarithmic axicon: smoothness and uniformity of intensity distributions.
We show that the apodized annular-aperture logarithmic axicon preserves excellent uniformity of the on-axis intensity, energy flow, and lateral resolution. Numerical evaluation of the Fresnel diffraction integral leads to results very close to geometrical-optics predictions. Once again the geometrical law of energy conservation turns out to be a useful tool in designing axicons.
Jaroszewicz
Z
Z
Sochacki
J
J
Kolodziejczyk
A
A
Staronski
L R
LR