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  Two-dimensional spectral interpretation of time-dependent absorption near laser-coupled resonances

Blättermann, A., Ott, C., Kaldun, A., Ding, T., & Pfeifer, T. (2014). Two-dimensional spectral interpretation of time-dependent absorption near laser-coupled resonances. Journal of Physics B, 47(12): 124008. doi:10.1088/0953-4075/47/12/124008.

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1403.2609v1 (Preprint), 2MB
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1403.2609v1
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Blättermann, Alexander1, Author           
Ott, Christian1, Author           
Kaldun, Andreas1, Author           
Ding, Thomas1, Author           
Pfeifer, Thomas1, Author           
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1Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society, ou_2025284              

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 Abstract: We demonstrate a two-dimensional time-domain spectroscopy method to extract amplitude and phase modifications of excited atomic states caused by the interaction with ultrashort laser pulses. The technique is based on Fourier analysis of the absorption spectrum of perturbed polarization decay. An analytical description of the method reveals how amplitude and phase information can be directly obtained from measurements. We apply the method experimentally to the helium atom, which is excited by attosecond-pulsed extreme ultraviolet light, to characterize laser-induced couplings of doubly excited states.

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Language(s): eng - English
 Dates: 2014-06-10
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1088/0953-4075/47/12/124008
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Title: Journal of Physics B
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 47 (12) Sequence Number: 124008 Start / End Page: - Identifier: ISSN: 0953-4075
CoNE: https://pure.mpg.de/cone/journals/resource/954928494403