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Multidimensional spectroscopy with attosecond extreme ultraviolet and shaped near-infrared pulses.
Marroux, Hugo J B; Fidler, Ashley P; Neumark, Daniel M; Leone, Stephen R.
Afiliación
  • Marroux HJB; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Fidler AP; Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  • Neumark DM; Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA.
  • Leone SR; Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Sci Adv ; 4(9): eaau3783, 2018 09.
Article en En | MEDLINE | ID: mdl-30276268
Dynamics following excitation with attosecond extreme ultraviolet (XUV) pulses arise from enormous numbers of accessible excited states, complicating the retrieval of state-specific time evolutions. We develop attosecond XUV multidimensional spectroscopy here to separate interfering pathways on a near-infrared (NIR) energy axis, retrieving single state dynamics in argon atoms in a two-dimensional (2D) XUV-NIR spectrum. In this experiment, we measure four-wave mixing signal arising from the interaction of XUV attosecond pulses centered around 15 eV with two few-cycle NIR pulses. The 2D spectrum is created by measuring the emitted XUV signal field spectrum while applying narrowband amplitude and phase modulations to one of the NIR pulses. Application of such a technique to systems of high dimensionality will provide for the observation of state-resolved pure electronic dynamics, in direct analogy to phenomena unraveled by multidimensional spectroscopies at optical frequencies.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2018 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos