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DTSTART:19700329T020000
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CLASS:PUBLIC
SUMMARY:A superradiant terahertz view on low energy excitations in matter
DTSTART;TZID=Europe/Berlin:20180703T100000
DTEND;TZID=Europe/Berlin:20180703T000000
DTSTAMP:20180703T100000Z
LOCATION;ENCODING=QUOTED-PRINTABLE:Campus Campus Duisburg : MG 272
CONTACT:Dr. Manuel Ligges ()
DESCRIPTION:Dr. Manuel Ligges ()
A superradiant terahertz view on low energy excitations in matter
Dr. Michael Gensch, Helmholtz-Zentrum Dresden-Rossendorf
Recent progress in accelerator technology has made strong, tunable CEP stable, multicycle terahertz pulses available with repetition rates that can be matched optimally to the requirements of individual experiments. The low quantum energies and narrow-bandwidth of the pulses from these superradiant sources allows to selectively target specific low energy degrees of freedom in matter in its electronic groundstate. The evolving transient states can be monitored on femto- to nanosecond timescales by ultra-fast laser spectroscopies, whereby the optionally available high repetition rates in the 100 kHz to MHz regime will enable to investigate THz driven phase transitions or chemical reactions by novel duty-cycle hungry probe techniques such as time-resolved nearfield microscopy or time-resolved ARPES in the medium term future.
Tuesday, 3. July 2018
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