Unravelling the intertwined atomic and bulk nature of localised excitons by attosecond spectroscopy.

  title={Unravelling the intertwined atomic and bulk nature of localised excitons by attosecond spectroscopy.},
  author={Matteo Lucchini and Shunsuke A. Sato and Giacinto D Lucarelli and Bruno Moio and Giacomo Inzani and Roc{\'i}o Borrego-Varillas and Fabio Frassetto and Luca Poletto and Hannes H{\"u}bener and Umberto de Giovannini and {\'A}ngel Rubio and Mauro Nisoli},
  journal={Nature communications},
  volume={12 1},
The electro-optical properties of most semiconductors and insulators of technological interest are dominated by the presence of electron-hole quasi-particles, called excitons. The manipulation of excitons in dielectrics has recently received great attention, with possible applications in different fields including optoelectronics and photonics. Here, we apply attosecond transient reflection spectroscopy in a sequential two-foci geometry and observe sub-femtosecond dynamics of a core-level… Expand
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