2.1 ev Group Metastable second 1.67 ev 1.17 ev (1.06 um) 0.50 eV First O ev Ground state Figure 30.65 Neodymium atoms in glass have these energy levels, one of which is metastable. The group of levels above the metastable state is convenient for achieving a population inversion, since photons of many different energies can be absorbed by atoms in the ground state.
2.1 ev Group Metastable second 1.67 ev 1.17 ev (1.06 um) 0.50 eV First O ev Ground state Figure 30.65 Neodymium atoms in glass have these energy levels, one of which is metastable. The group of levels above the metastable state is convenient for achieving a population inversion, since photons of many different energies can be absorbed by atoms in the ground state.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Some of the most powerful lasers are based on the energy levels of neodymium in solids, such as glass, as shown .
(a) What average
1.06 μm
Expert Solution
Answer for part (a)
The energy released during the transition between metastable and the ground state can be given as
Substituting the values from the energy level diagram gives,
Answer for part (a) continues
Now, the required wavelength can be obtained as
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