Some of the most powerful lasers are based on the energy levels of neodymium in solids, such as glass, as shown . (a) What average wavelength light can pump the neodymium into the levels above its metastable state? (b) Verify that the 1.17 eV transition produces1.06 μm radiation. 2.1 evGroupMetastablesecond1.67 ev1.17 ev (1.06 um)0.50 eVFirstO evGround stateFigure 30.65 Neodymium atoms in glass have these energy levels, oneof which is metastable. The group of levels above the metastable stateis convenient for achieving a population inversion, since photons ofmany different energies can be absorbed by atoms in the ground state.

Answered: 2.1 ev Group Metastable second 1.67 ev…

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

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Some of the most powerful lasers are based on the energy levels of neodymium in solids, such as glass, as shown .
(a) What average wavelength light can pump the neodymium into the levels above its metastable state? (b) Verify that the 1.17 eV transition produces
1.06 μm radiation.

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.

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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