Direct evidence of Rabi oscillations and antiresonance in a strongly coupled organic microcavity

S. K. Rajendran*, W. Wang, D. Brida, A. De Sio, E. Sommer, R. Vogelgesang, D. Coles, D. G. Lidzey, G. Cerullo, C. Lienau, T. Virgili

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We report the direct observation of 30-fs period Rabi oscillations between excitons and cavity photons in a strongly coupled J-aggregate microcavity by means of time-resolved up-conversion and spectral interferometry measurements. The time structure of the transmitted electric field, measured by linear spectral interferometry, shows pronounced ultrafast beats. Its spectral phase reveals a distinct signature caused by destructive interference between the coherent drive and the field radiated by the exciton. This antiresonance selectively probes the uncoupled exciton excitation, and its observation uncovers the coherent and ultrafast exchange of energy between the optically excited cavity and the J-aggregate excitons, as confirmed by transfer matrix calculations.

Original languageEnglish
Article number201305
JournalPhysical Review. B, Condensed matter and materials physics
Volume91
Issue number20
DOIs
Publication statusPublished - 28 May 2015

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