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Spontaneous emission dominates for frequencies

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As a mechanism for downward trans1t10ns, spontaneous emission competes with thermally stimulated emission (stimulated emission for which black­ body radiation is the source). Show that at room temperature ( T = 300 K) thermal stimulation dominates for frequencies well below 5 x 1012 Hz, whereas spontaneous emission dominates for frequencies well above 5 x 1012 Hz. Which mechanism dominates for visible  light?

Reference no: EM13887657

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