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  Highly nonlinear and ultrafast optical phenomena in metallic nanostructures

Wimmer, L., Sivis, M., Herink, G., Yalunin, S., Echternkamp, K., & Ropers, C. (2016). Highly nonlinear and ultrafast optical phenomena in metallic nanostructures. In M. Kitzler, & S. Gräfe (Eds.), Ultrafast Dynamics Driven by Intense Light Pulses (pp. 233-258). Cham: Springer. doi:10.1007/978-3-319-20173-3_10.

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Wimmer, L., Author
Sivis, M., Author
Herink, G., Author
Yalunin, S.V., Author
Echternkamp, K.E., Author
Ropers, Claus1, Author                 
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1Department of Ultrafast Dynamics, MPI for Biophysical Chemistry, Max Planck Society, Göttingen, DE, ou_3371855              

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 Abstract: This Chapter presents recent findings on nonlinear ionization and photoemission processes at metallic nanostructures. A particular emphasis is placed on processes which—due to the localized excitation in optical near-fields—exhibit different properties and scalings from their counterparts in the gas phase or at planar surfaces. The Chapter is structured in two parts. The first part discusses various regimes in highly nonlinear photoelectron emission from metallic nanotips, including field-driven photoemission at near- and mid-infrared frequencies, and the control of localized photoemission using intense terahertz transients. In the second part, multiphoton and strong-field ionization of atomic gases in plasmonic antennas and waveguides is presented. It is demonstrated that local ionization is enabled by optical field enhancements in various types of structures. At the same time, fundamental physical limitations preventing efficient high-harmonic generation in nanostructures are discussed.This Chapter presents recent findings on nonlinear ionization and photoemission processes at metallic nanostructures. A particular emphasis is placed on processes which—due to the localized excitation in optical near-fields—exhibit different properties and scalings from their counterparts in the gas phase or at planar surfaces. The Chapter is structured in two parts. The first part discusses various regimes in highly nonlinear photoelectron emission from metallic nanotips, including field-driven photoemission at near- and mid-infrared frequencies, and the control of localized photoemission using intense terahertz transients. In the second part, multiphoton and strong-field ionization of atomic gases in plasmonic antennas and waveguides is presented. It is demonstrated that local ionization is enabled by optical field enhancements in various types of structures. At the same time, fundamental physical limitations preventing efficient high-harmonic generation in nanostructures are discussed.

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Language(s): eng - English
 Dates: 20152016
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1007/978-3-319-20173-3_10
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Title: Ultrafast Dynamics Driven by Intense Light Pulses
  Subtitle : From Atoms to Solids, from Lasers to Intense X-rays
Source Genre: Book
 Creator(s):
Kitzler, Markus, Editor
Gräfe, Stefanie, Editor
Affiliations:
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Publ. Info: Cham : Springer
Pages: - Volume / Issue: Chapter 10 Sequence Number: - Start / End Page: 233 - 258 Identifier: DOI: 10.1007/978-3-319-20173-3
ISBN: 978-3-319-37356-0