In a helium-neon laser, the laser light arises from a transition from a _________ state to a _________ state:
A)He, He
B)Ne, Ne
C)He, Ne
D)Ne, He
E)N, He

Question

Quizplus · Accepted Answer

In a helium-neon laser, the laser action occurs due to the transition of electrons in neon atoms from a higher energy state to a lower energy state, not involving helium in the transition process directly. Helium atoms are excited and then transfer their energy to neon atoms, which then undergo the lasing transition.

In a Helium-Neon Laser, the Laser Light Arises from a Transition