Spectroscopic full polarimeters using spatial carriers

摘要

Several implementations of spectroscopic polarimeters using spatial carriers are presented. The first implementation incorporates two Savart plates and a spectrometer including a two-dimensional CCD to generate a spectrum with spatial carriers. The frequency filtering along the spatial coordinate at each wavelength allows us to conduct the snapshot measurement of the wavelength-resolved Stokes parameters. The spectral resolution of the SOP measurement can be enhanced up to that of the spectrometer. In the second implementation, two achromatic birefringent prism pairs are used to decrease the limitation in the design of the spectroscopic polarimeter. Finally, the present method is combined with a channeled spectroscopic polarization state generator so that the spectroscopic Mueller matrix of a sample can be determined by the snapshot measurement of the two-dimensional spectrum.