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Cuvillier Verlag

30 Jahre Kompetenz im wissenschaftlichen Publizieren
Internationaler Fachverlag für Wissenschaft und Wirtschaft

Cuvillier Verlag

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Coherent dynamics of small molecules in rare gas crystals

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EUR 28,00 EUR 26,60

E-Book
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Coherent dynamics of small molecules in rare gas crystals

Markus Gühr (Autor)

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Inhaltsverzeichnis, Datei (19 KB)
Leseprobe, Datei (150 KB)

ISBN-13 (Printausgabe) 3865374115
ISBN-13 (Printausgabe) 9783865374110
ISBN-13 (E-Book) 9783736914117
Sprache Deutsch
Seitenanzahl 192
Auflage 1
Band 0
Erscheinungsort Göttingen
Promotionsort Göttingen
Erscheinungsdatum 30.03.2005
Allgemeine Einordnung Dissertation
Fachbereiche Physik
Beschreibung

The book presents a systematic study of coherent phenomena in molecule doped rare gas crystals, examplified on bromine and iodine molecules in solid argon and krypton. Ultrashort laser pulses are applied to prepare vibrational wave packets on the molecules. Their dynamics is investigated via the pump-probe method. The priniples of classical and quantum mechanical coherence are introduced in the first chapters together with the concepts of wave packet focusing and fractional revivals. Those are used to deduce the vibrational and electronic decoherence of molecular wave packets in the rare gas host. A novel coherent control scheme based on chirped laser pulse excitation is worked out to manipulate the wave packets. Furthermore, the molecular energy relaxation and the rotational behaviour in the rare gas host are discussed. Apart from the molecular wave packets, coherent phonons of the rare gas crystal are investigated via the pump-probe spectroscopy on the molecule. Those phonons are excited impulsively in a molecular electronic transition and modulate the host density close to the molecule. Due to the special probe situation, only coherent zone boundary phonons show up in the transients.