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) |