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Figure 4
(a) Calculated ideal parabolic and sine-modulated (d0 = 1 µm) lens profiles. Theoretical intensity distributions along and across the optical axis for focusing by (b) an ideal and (c) the distorted (d0 = 1 µm) lens profiles. |
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Figure 4
(a) Calculated ideal parabolic and sine-modulated (d0 = 1 µm) lens profiles. Theoretical intensity distributions along and across the optical axis for focusing by (b) an ideal and (c) the distorted (d0 = 1 µm) lens profiles. |