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  Attosecond timing of the dynamical Franz–Keldysh effect

Lucchini, M., Sato, S., Schlaepfer, F., Yabana, K., Gallmann, L., Rubio, A., et al. (2020). Attosecond timing of the dynamical Franz–Keldysh effect. Journal of Physics: Photonics, 2(2): 025001. doi:10.1088/2515-7647/ab70cb.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-B05C-D Version Permalink: http://hdl.handle.net/21.11116/0000-0005-B05D-C
Genre: Journal Article

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Lucchini_2020_J._Phys._Photonics_2_025001.pdf (Publisher version), 2MB
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Lucchini_2020_J._Phys._Photonics_2_025001.pdf
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Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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2020
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© the Author(s). Published by IOP Publishing Ltd

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https://dx.doi.org/10.1088/2515-7647/ab70cb (Publisher version)
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 Creators:
Lucchini, M.1, 2, Author
Sato, S.3, 4, Author              
Schlaepfer, F.2, Author
Yabana, K.3, 5, Author
Gallmann, L.2, Author
Rubio, A.4, 6, Author              
Keller, U.2, Author
Affiliations:
1Department of Physics, Politecnico di Milano, ou_persistent22              
2Department of Physics, ETH Zurich, ou_persistent22              
3Center for Computational Sciences, University of Tsukuba, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Graduate School of Pure and Applied Sciences, University of Tsukuba, ou_persistent22              
6Center for Computational Quantum Physics (CCQ), The Flatiron Institute, ou_persistent22              

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 Abstract: To what extent do intra- or inter-band transitions dominate the optical response of dielectrics when pumped by a few-cycle near-infrared transient electric field? In order to find an answer to this question we investigate the dynamical Franz–Keldysh effect in polycrystalline diamond and discuss in detail the attosecond delay of the induced electron dynamics with regard to the driving transient electric field while the peak intensity is varied between 1 × 1012 and 10 × 1012 W cm−2. We found that the main oscillating feature in transient absorption at 43 eV is in phase with the electric field of the pump, to within 49 ± 78 as. However, the phase delay shows a slightly asymmetric V-shaped linear energy dispersion with a rate of about 200 as eV–1. Theoretical calculations within the dipole approximation reproduce the data and allow us to conclude that intra-band motion dominates under our experimental conditions.

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Language(s): eng - English
 Dates: 2020-01-082019-12-042020-01-282020-02-18
 Publication Status: Published online
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1088/2515-7647/ab70cb
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Project name : This research was supported by the NCCR MUST, funded by the Swiss National Science Foundation. This research used computational resources from the K computer provided by RIKEN AICS through the HPCI System Research project (project ID hp150101) and the Garching Supercomputing Center of the Max Planck Society.
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Title: Journal of Physics: Photonics
  Abbreviation : JPhys Photonics
Source Genre: Journal
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Publ. Info: IOP Publishing
Pages: - Volume / Issue: 2 (2) Sequence Number: 025001 Start / End Page: - Identifier: ISSN: 2515-7647
CoNE: https://pure.mpg.de/cone/journals/resource/2515-7647