What is the minimum number of levels a microscopic system can have for there to be...
What is the minimum number of levels a microscopic system can have for there to be a laser transition.
a. 1
b. 2
c. 3
d. 4
Homework Answers
Minimum number of levels are 3
There is two types of transition.
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What is the minimum number of levels a microscopic system can
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Note: The notation mentioned above is gamma for losses to different levels, and W_p for pumping f...
Note: The notation mentioned above is gamma for losses to
different levels, and W_p for pumping from one level to
another.
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Artificial rubies have an atomic system consisting of three main energy levels and can be used to produce short pulses of laser light. The energies of these levels are Eo, E1 and E2, in increasing order of energy (a) Write down an expression giving the relative population of the energy levels Eo and E1 at thermal equilibrium. b) Explain what is meant by the term population inversion. Described how this is achieved in a three-level laser system Photons of wavelength...
Note: The notation mentioned above is gamma for losses to
different levels, and W_p for pumping from one level to
another.
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