Question

8 Reflection from a metal Consider an ideal metal with an index of refraction given by n wilwa. Where net is the V p/ p me to plasma frequency, given in terms of the electron density ne, charge of the electron e, and mass of the electron me. For example, for aluminum with ne = 18.1 x 1022 cm , the plasma frequency is approximately Wp = 2.3 x 1016 rad/s (hwp = 15 eV, in the vacuum ultraviolet). What is the magnitude of the normal incidence reflection coefficient in the case where w<wp?

Answer 1

wp2 - 1 wa - in R = 12 in -1 nh - = 1 n - lin Tin to -in-1 son-1 (int u -in ti lona i ne