Photoinduced quantum interference antiresonances in π-conjugated polymers

R. Österbacka, X. M. Jiang, C. P. An, B. Horovitz, Z. V. Vardeny

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)


We observed photoinduced quantum interference antiresonances between several discrete infrared-active vibrations and the lower-polaron continuous absorption band in a series of [Formula presented]-conjugated polymer films having superior planar orders, where the polaron transition energy is relatively small. The photoinduced Fano-type antiresonances are well explained by extending the amplitude mode model beyond the adiabatic limit. The agreement between the data and the model confirms the presence of a continuous electronic band above the polaron state. We show that high frequency modes are strongly coupled to electrons, with implications for superconductivity.

Original languageEnglish
Article number226401
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed


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