Table 1. Parameters for lens simulation in Zemax software according to equation 2.

i	A	B/nm−2	C/nm2
0	1.545	−5.042•10−8	3317.542
1	−0.741	3.198•10−7	8948.224
2	−7.399•10−12	1.197•10−17	1.036•10−6
3	−2.047	−1.480•10−6	−58235.821