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Figure 5
(a) Spot size, (b) in-plane wavevector slope in the central region, and (c) plane wave size at the focal plane as a function of the BDA size. The region with cos(φ) > 0.95 is regarded as a plane wave. |
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Figure 5
(a) Spot size, (b) in-plane wavevector slope in the central region, and (c) plane wave size at the focal plane as a function of the BDA size. The region with cos(φ) > 0.95 is regarded as a plane wave. |