Abstract:
Theory of holographically recorded plane diffraction gratings (HRPDG) has been presented. In general HRPDG with have curved grooves with variable spacing. The self focussing property of HRPDG has been studied in detail. The curved form of the grooves is helpful in reducing the spectral image aberrations. Design parameters and aberrations arc discussed in detail. It is found that by proper choice of design parameters the aberrations can be reduced considerably and resolution can be improved.
