Far-field vector-diffraction of off-axis parabolic mirror under oblique incidence*

Project supported by the Science Foundation for Youth Scholars of Minjiang University, China (Grant No. Mj9n201602) and the National Science and Technology Major Project of the Ministry of Science and Technology of China.

Zeng Xia-Hui, Chen Xi-Yao
       

Electromagnetic field intensity distributions of focused square super-Gaussian top-hat beam polarized along x direction by OAPs with off-axis angles [(a1)–(a8)] ϕ = 0°, [(b1)–(b8)] ϕ = 20.7°, and [(c1)–(c8)] ϕ = 61.6° under oblique incidence angle of 0.016° around the x axis. Fields are computed in focal plane (the x′–y′ plane with zP=0) . Intensity is indicated by “heat” of the color bar.