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.
© 1993 Optical Society of America
Original Manuscript: July 14, 1993
Published: November 15, 1993
Zbigniew Jaroszewicz, Andrzej Kołodziejczyk, Leszek Rafał Staronski, and Jacek Sochacki, "Apodized annular-aperture logarithmic axicon: smoothness and uniformity of intensity distributions," Opt. Lett. 18, 1893-1895 (1993)