In the operation of a helium-neon laser, why is it
Chapter 32, Problem 65TAE(choose chapter or problem)
In the operation of a helium–neon laser, why is it important that the metastable state of helium be relatively longlived? (What would be the effect of this state de-exciting too rapidly?) (Refer to Figure 30.22.)
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer