Abstract

We demonstrate that collective atomic interferences can be investigated by measuring the superfluorescence (SF) time delay. A pair of broadband (20nm), ultrashort (80fs), collinear pulses with a variable delay coherently excites rubidium (Rb) atoms. The generated superfluorescent pulses at 420 nm on the cascade transition are recorded by a picosecond streak camera. Both intensity and SF time delay of the 420 nm pulse are altered as the delay between input pulses varies. In particular, the SF time delay of the normalized 420 nm pulse exhibits oscillations with different periods. This can be understood in terms of atomic and quantum interferences due to two possible two-photon excitation pathways through the intermediate levels (Rb D-lines).

© 2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Switching from a sequential transition to quantum beating in atomic rubidium pumped by a femtosecond laser

Gombojav O. Ariunbold, Vladimir A. Sautenkov, and Marlan O. Scully
J. Opt. Soc. Am. B 28(3) 462-467 (2011)

Observation of picosecond UV pulses produced by coherent scattering of IR femtosecond pulses in atomic rubidium vapor

Gombojav O. Ariunbold, Michael M. Kash, Vladimir A. Sautenkov, Hebin Li, Yuri V. Rostovtsev, George R. Welch, and Marlan O. Scully
J. Opt. Soc. Am. B 28(3) 515-520 (2011)

Dynamics of triple quantum beats retrieved from coupled four-wave mixing signals

Changjun Zhu, Bei Xu, Qing Chu, Junfang He, and Xiang’an Yan
J. Opt. Soc. Am. B 33(3) 485-490 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription