DETERMINING OF OPTICAL-CONSTANTS BY THE SPECTROPHOTOMETRIC METHOD

A spectrophotometric method is considered for determining the optical constants of transparent materials from measurements of the directiona l transmittances of two plane-parallel plates of different thickness. The system of transcendental equations relating these quantities is so lved by Newton's method using a personal computer. The capabilities of the method are demonstrated for the example of colored glasses. It is shown how an error in the measurements of the transmittances and plat e thickness affects the result of determining the optical constants.