8. In these questions, you will work through the requirements needed to make a l

Question

8. In these questions, you will work through the requirements needed to make a laser, and think about how you can rework a laser design given adverse conditions. A laser involves the various processes by which light interacts with atoms: absorption, spontaneous emission, and stimulated emission. Which of the following descriptions accurately describes each process: a. (1 Points) The process in which the electron naturally jumps down from a higher energy state to a lower state and spits out a photon corresponding to the energy difference as it does so: b. (1 Points) The process by which the light is absorbed and the energy causes the atomic electron to go to a higher energy level c. (1 Points) The process where a photon hits an atom that is in a higher energy level already and this causes the atom to spit out a photon that is identical to the one that hit the atom so there are two identical photons:

Explanation / Answer

a) This process is called spontaneous emission because a photon is emitted spontaneously.

b) This process is called spontaneous absorption.

c) This process is called stimulated emission.

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