Phys. Rev. Lett. 38, 1077–1080 (1977)Observation of Amplification in a Strongly Driven Two-Level Atomic System at Optical FrequenciesReceived 21 March 1977; published in the issue dated 9 May 1977 We report the observation of optical amplification in a two-level atomic system driven by a strong, resonant field. By exciting an atomic beam of two-level sodium atoms simultaneously with a strong, fixed-frequency driving field and a weak, tunable, probe field, we have measured the absorption (amplification) line-shape function for several values of driving field strength. In addition, we have verified theoretical predictions that higher amplification is obtained when the strong field is detuned from exact resonance. © 1977 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.38.1077
DOI:
10.1103/PhysRevLett.38.1077
PACS:
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.