Consider an optical gain medium that has two levels at e, Ask an Expert

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Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV.

a) What is the resonant absorption wavelength?

b) What is the spontaneous emission wavelength?

c) What is the stimulated emission wavelength?

d) Explain the differences between the light produced by spontaneous and stimulated emission.

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