Comparison of Theoretical calculation and simulation focusing positions of off-axis meta-lens with Different NA (Unit: um)

Parameters

NA

Theoretical focus positions x-z

Simulation of focus position x-z

Deviation δx-δz

0.408

(7.4202, 32.141)

(7.1, 31.2)

(0.3202, 0.941)

0.18

(17.996, 77.9496)

(14, 62)

(3.996, 15.9496)