Polarisation establishment with respect to wavelength of source spectra

摘要

The method involves enabling a radiation (1) from the source to impinge on a micro-optically structured polarisation lattice (2). This may be a circular or may be a polygonal plate having a surface contour to suit the application. The polarised electromagnetic waves strike a diffraction grating (3) in which the dispersal occurs according to wavelength, and the intensity of the various spectra is registered by a CCD matrix camera.