The femtosecond bleaching dynamics of po
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Jean-Michel Nunzi; Charles Hirlimann; Jean-FranΓ§ois Morhange
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Article
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1994
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Elsevier Science
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English
β 538 KB
The femtosecond exciton bleaching dynamics in a thin film of polycrystalline polydiacetylene is studied using 2 eV resonant pumping under saturation conditions. A transient hole is burnt in the inhomogeneous spectrum, 20 meV below the pump energy at room temperature. Within the 100 fs excitation ste