Phys. Rev. Lett. 81, 1215–1218 (1998)Observation of Raman Self-Conversion of fs-Pulse Frequency due to Impulsive Excitation of Molecular VibrationsReceived 16 April 1998; published in the issue dated 10 August 1998 We report on the observation of a Raman frequency conversion mechanism different from the usual Stokes (anti-Stokes) stimulated process. A continuous down-shift of laser pulse frequency was measured for sufficiently short (≤40fs) pulses propagating in gaseous SF6. We attribute this behavior to the extremely nonstationary nuclear response of SF6 molecules to the light field with a duration shorter than the period of the Raman-active vibration. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.1215
DOI:
10.1103/PhysRevLett.81.1215
PACS:
33.80.-b
|
|
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.