One photodetector is located in front of a thick piece of gl

One photodetector is located in front of a thick piece of glass and another photodetector is located within the glass. At normal incidence, the glass reflects 4% of the light. A Photon is incident on the glass, as indicated in Fig 1.42. (a) What is the magnitude of the probability amplitude for reflection of the photon? (b) What is the magnitude of the probability amplitude for transmission of the photon?

Solution

Probability amplitude is the square of classical probability.

a) probability amplitude of reflection = .04 x .04 = . 0016 = 0.16 %

b) Probability amplitude of transmission = .96 x .96 = .9216 =92.16 %