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Figure 1

From: Ultrawide-angle and high-efficiency metalens in hexagonal arrangement

Figure 1

Traditional lens and wide-angle metalens and their optical properties. (a) Traditional lens layout; (b) traditional lens Strehl ratio; (c) traditional lens MTF; (d) metalens layout; (e) metalens Strehl ratio; (f) metalens MTF. The NA of the optical system in both the designs is set to 0.18, and the cutoff frequency is approximately 600 in cycle per mm.

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