Figure 5
Focal curves calculated with the groove density distribution nmeas(x) of the fabricated grating at different incidence angles. The dashed and solid vertical lines indicate the optimized detector positions calculated with nopt(x) of the XVLSG and nmeas(x) of the fabricated VLSG, respectively. The empty red and solid black blocks are the simulated focus curves of the VLSGs with nopt(x) and nmeas(x), respectively. |