| 1. | The separated population represents a population inversion which can exhibit stimulated emissions.
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| 2. | By pumping energy into the system we can achieve a population inversion.
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| 3. | Using clever pulse sequences, you achieve population inversion.
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| 4. | Taking the Boltymann formula you say, " Population inversion means negative teperature.
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| 5. | Power is obtained when there is population inversion between levels 3 and 2.
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| 6. | Gain is achieved in a DFA due to population inversion of the dopant ions.
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| 7. | To achieve population inversion therefore requires pushing the system into a non-equilibrated state.
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| 8. | This makes them suitable for use in lasers as it makes the population inversion easy to achieve.
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| 9. | This basis is often used in laser theory, where w is known as the population inversion.
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| 10. | A population inversion therefore builds up in the 6 2 S 1 / 2 upper laser level.
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