Visual fourier-transform spectroscopy with a single crystal plate.
This paper shows how a single Z-cut plate of uniaxial crystal can be used as a two-beam interferometer of Fourier-transform spectrometer. As a visual device, it permits easy identification of a set of achromatic fringes that can be seen in any two-beam interferometer when a white-light source is observed through it. These fringes apparently have not been described previously. They are expected when we understand that the white-light fringe pattern is in fact the Fourier transform of the spectral-sensitivity curve of the eye.
D002119:Calcium Carbonate; D003116:Color; D003461:Crystallography; D005374:Filtration; D005583:Fourier Analysis; D006801:Humans; D008433:Mathematics; D010775:Photic Stimulation; D013053:Spectrophotometry / Q000295:instrumentation*; D014796:Visual Perception
D002119:Calcium Carbonate