Brief description of the focusing of the arrays of diffracting holographic spherical operating by reflection, objectives and in applying spectrometers dispersive

摘要

The invention relates to a method of focusing of the arrays of diffracting holographic spherical of radius of curvature r, operating by reflection in the dispersion of the various radiations constituting a polychromatic application according to which it uses a slot for the input and at least one outlet slot (or a multichannel thereof) are fixed, the holographic network being fixed, which method consists, for a wave length l and ucorrespondant is the sum of the equations sagittal the object and the image, relations in which n represents the number of lines per mm of the network (not shown) carried out at the laser wavelength l0 from the recording of the fringes of interference generated sources by two points c and d defined with their pole contact information, respectively, with respect to the top of the network to the point that for the point d, and such that / 00307 intensity of the image diffracted obtained being symmetrical.