In the Helium Neon (HeNe) laser (see accompanying handout), He atoms are excited by electron impact to the 1s2s configuration that, as we have shown, gives rise to the 1S and 3S terms. These transitions are called the pumping transition. The resulting 1S and 3S He terms (which differ in energy) excite Neon into excited states, namely 1s22s22p55s1 and 1s22s22p54s1, respectively, through collisional transfer of energy. The excited states in these neon configurations can emit energy in the form of photons to reach the lower lying states described by the configurations 1s22s22p54p1 and 1s22s22p53p1. These transitions are called the lasing transitions. Determine the atomic term symbols for each of these four electron configurations (show your work!), and the expected energy ordering of the resulting terms (low energy to high energy). How many lasing transitions are possible?

Answered: Image /qna-images/answer/6f9712ed-79bc-454b-8e58-d5753a7ae96b.jpg

Answered: In the Helium Neon (HeNe) laser (see…

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter6: Electronic Structure And The Periodic Table

Section: Chapter Questions

Problem 66QAP: Consider the following transitions 1. n=3 to n=1 2. n=2 to n=33. n=4 to n=34. n=3 to n=5(a) For...

Related questions

Question

In the Helium Neon (HeNe) laser (see accompanying handout), He atoms are excited by electron impact to the 1s2s configuration that, as we have shown, gives rise to the ¹S and ³S terms. These transitions are called the pumping transition. The resulting ¹S and ³S He terms (which differ in energy) excite Neon into excited states, namely 1s²2s²2p⁵5s¹ and 1s²2s²2p⁵4s¹, respectively, through collisional transfer of energy. The excited states in these neon configurations can emit energy in the form of photons to reach the lower lying states described by the configurations 1s²2s²2p⁵4p¹ and 1s²2s²2p⁵3p¹. These transitions are called the lasing transitions. Determine the atomic term symbols for each of these four electron configurations (show your work!), and the expected energy ordering of the resulting terms (low energy to high energy). How many lasing transitions are possible?