Answer to Question #90082 in Optics for Shivam Nishad

Question

An ordinary source emits light at 103k. Show that in this case, spontaneous emission will dominate over stimulated emission.

Answer 1

Stimulated emission refers to a process where an electron interacts with an incoming electromagnetic wave in the form of a photon. Spontaneous emission excited by some means other than heating is called luminescence. Spontaneous emission is characterized by not high temperature. So luminescence can be determined as an appearance of cold body radiation. In this way, if source emits light at 103k then spontaneous emission will dominate over stimulated emission.