Far-field vector-diffraction of off-axis parabolic mirror under oblique incidence<xref rid="cpb_29_3_034202fn1" ref-type="fn">*</xref><fn id="cpb_29_3_034202fn1"><label>*</label><p>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.</p></fn>

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

3D intensity distribution of total diffraction electric field E′ focused by OAP with φ = 0° for R = 160 mm and θ_x = 0.016°. (a) Intensity profiles in cross-sections at z = − 100λ–100λ. (b) Intensity profile in meridional (x′–z′) plane. (c) Intensity profile in sagittal (y′–z′) plane. Bent yellow dotted line presents propagation locus of main intensity. Green and light blue dashed lines present diffraction focus position in corresponding plane. Intensity is indicated by color “heat”.