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  Nonlinear phononics as an ultrafast route to lattice control

Först, M., Manzoni, C., Kaiser, S., Tomioka, Y., Tokura, Y., Merlin, R., et al. (2011). Nonlinear phononics as an ultrafast route to lattice control. Nature Physics, 7(11), 854-856. doi:10.1038/nphys2055.

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1101.1878.pdf (Preprint), 2MB
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2011
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© M. Först et al.

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http://dx.doi.org/10.1038/nphys2055 (Verlagsversion)
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http://arxiv.org/abs/1101.1878 (Preprint)
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 Urheber:
Först, Michael1, 2, Autor           
Manzoni, Cristian1, 2, Autor           
Kaiser, Stefan1, 2, Autor           
Tomioka, Y.3, Autor
Tokura, Y.4, Autor
Merlin, R.5, Autor
Cavalleri, Andrea1, 2, Autor           
Affiliations:
1Condensed Matter Dynamics Division, Max Planck Research Department for Structural Dynamics, Department of Physics, University of Hamburg, External Organizations, ou_2173637              
2Center for Free Electron Laser Science, 22607 Hamburg, Germany, ou_persistent22              
3Correlated Electron Engineering Group, AIST, Tsukuba, Ibaraki, 305-8562, Japan, ou_persistent22              
4Department of Applied Physics, University of Tokyo, Tokyo, 113-8656, Japan, ou_persistent22              
5Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA, ou_persistent22              

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 Zusammenfassung: Two types of coupling between electromagnetic radiation and a crystal lattice have so far been identified experimentally. The first is the direct coupling of light to infrared-active vibrations carrying an electric dipole. The second is indirect, involving electron–phonon coupling and occurring through excitation of the electronic system; stimulated Raman scattering is one example. A third path, ionic Raman scattering (IRS), was proposed 40 years ago. It was posited that excitation of an infrared-active phonon could serve as the intermediate state for Raman scattering, a process that relies on lattice anharmonicities rather than electron–phonon interactions. Here, we report an experimental demonstration of IRS using femtosecond excitation and coherent detection of the lattice response. We show how this mechanism is relevant to ultrafast optical control in solids: a rectified phonon field can exert a directional force onto the crystal, inducing an abrupt displacement of the atoms from their equilibrium positions. IRS opens up a new direction for the optical control of solids in their electronic ground state, different from carrier excitation.

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Sprache(n): eng - English
 Datum: 2011-01-092011-06-252011-08-072011-11
 Publikationsstatus: Erschienen
 Seiten: 3
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/nphys2055
arXiv: 1101.1878
 Art des Abschluß: -

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Titel: Nature Physics
  Andere : Nat. Phys.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: London : Nature Pub. Group
Seiten: - Band / Heft: 7 (11) Artikelnummer: - Start- / Endseite: 854 - 856 Identifikator: ISSN: 1745-2473
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000025850