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  • Wolf, T. J. A.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)

Probing molecular photoinduced dynamics by ultrafast soft x-rays

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • IEEE,2017

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/268646
  • https://gup.ub.gu.se/publication/268646URI
  • https://doi.org/10.1109/CLEOE-EQEC.2017.8087756DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-361444URI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:kon swepub-publicationtype

Notes

  • Summary form only given. Molecules selectively transform light energy from the sun into other forms of energy like heat, electricity, or chemical energy with high quantum efficiency. The energy conversion process is the result of a correlated motion of electrons and nuclei after photoexcitation, often under breakdown of the Born-Oppenheimer approximation. The element and site selectivity of x-rays allows observing molecular processes from a different point of view compared to ultrafast optical probes [1,2]. I will concentrate on time resolved x-ray absorption spectroscopy. The method provides high selectivity on the transient electronic structure of a molecule. Recently, we establishes this method in the soft x-ray domain for probing ππ* to nπ* transitions, a general and important process for molecular energy conversion. Fig. 1 shows a sketch of thymine, used in the experiment, with one of the oxygen 1s core orbitals and the π,n and π* valence orbitals. While valence orbitals are generally delocalized over the whole molecular body, the lone pair n orbital is essentially an oxygen 2p orbital. An x-ray induced transition from the oxygen 1s to the n orbital will result in a strong absorption maximum in the pre-edge region. We use this feature to probe the molecular dynamics after photoexcitation.

Subject headings and genre

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  • Myhre, R. H.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway (author)
  • Cryan, J. P.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)
  • Coriani, S.Univ Trieste, Dipartimento Sci Chim & Farmaceut, Trieste, Italy: Aarhus Univ, Aarhus Inst Adv Studies, DK-8000 Aarhus C, Denmark (author)
  • Squibb, Richard J.Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Univ Gothenburg, Dept Phys, Gothenburg, Sweden(Swepub:gu)xsquri (author)
  • Battistoni, A.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)
  • Berrah, N.Univ Connecticut, Dept Phys, Storrs, CT 06269 USA (author)
  • Bostedt, C.SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94720 USA; Argonne Natl Lab, Lemont, IL 60439 USA; Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA (author)
  • Bucksbaum, P.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Stanford Univ, Dept Phys, Stanford, CA USA (author)
  • Coslovich, G.SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94720 USA (author)
  • Feifel, RaimundGothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Univ Gothenburg, Dept Phys, Gothenburg, Sweden(Swepub:gu)xfeira (author)
  • Gaffney, K. J.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)
  • Grilj, J.Ecole Polytech Fed Lausanne, Lab Ultrafast Spect, CH-1015 Lausanne, Switzerland (author)
  • Martinez, T. J.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Stanford Univ, Dept Chem, Stanford, CA 94305 USA (author)
  • Miyabe, S.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Stanford Univ, Dept Chem, Stanford, CA 94305 USA; RIKEN, Laser Technol Lab, Wako, Saitama 3510198, Japan (author)
  • Moeller, S. P.SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94720 USA (author)
  • Mucke, MelanieUppsala universitet,Molekyl- och kondenserade materiens fysik,Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.;Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany(Swepub:uu)melmu186 (author)
  • Natan, A.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)
  • Obaid, R.Univ Connecticut, Dept Phys, Storrs, CT 06269 USA (author)
  • Osipov, T.SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94720 USA (author)
  • Plekan, O.Elettra Sincrotrone Trieste, I-34149 Trieste, Italy (author)
  • Wang, S.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA (author)
  • Koch, H.Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway (author)
  • Guhr, M. (author)
  • Stanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USAStanford PULSE Inst, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA; Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway (creator_code:org_t)

Related titles

  • In:2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). 25-29 June 2017, Munich, Germany: IEEE97815090673679781509067374

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