Question

Consider a 1 μm thick coating of dielectric material (n-2) on a piece of glass (n = 1.5). Use a computer to plot the magnitude of the overall Fresnel coefficient (4.11) from air into the glass at normal incidence Plot as a function of incident wavelength in the range 200 nm to 800 nm, assuming the index remains constant over this range. P4.2

Answer 1

Given that: A glass plate n = 2 is with a costing of thickness of a particular material n = 1.5 such that refuter of light. for the constructive in finance l_n = n lambda where n = 1, 5, 2 (Because according to question) lambda - wavelength of red light less lambda = 800 nm x_n = (1.5 + 2) 800 times 10^-9 x_n = 1800 times 10^-9 In 1.5 adm lambda = 200 nm where If as follows x_n = n lambda l_n = (1.5 + 2) (200 times 10^-9) x_n = 10^3 times 10^-9 x_n = 1 rm.