Phase object's dispersion i.e. refractive index, measuring method, involves generating relative intensity curve through division of intensity curve, and calculating refractive index of object from relative curve over wavelength spectrum

摘要

The method involves illuminating a phase object with linearly polarized, polychromatic light, where the object is placed in a measuring cell (E). A measured value of an intensity curve is measured over wavelengths by collecting partial radiations passed through the object. A correction of the curve around scattering and absorption is carried out at the object location. A relative intensity curve is generated through a division of the intensity curve by a reference curve, and a refractive index of the object is calculated from the relative intensity curve over the observed wavelength spectrum. An independent claim is also included for a device for executing a method for measuring a dispersion of a phase object.