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Hofmann, Michael [Author]; Hyyti, Janne [Author]; Birkholz, Simon [Author]; Bock, Martin [Author]; Das, Susanta [Author]; Grunwald, Rüdiger [Author]; Hoffmann, Mathias [Author]; Nagy, Tamas [Author]; Demircan, Ayhan [Author]; Jupé, Marco [Author]; Ristau, Detlev [Author]; Morgner, Uwe [Author]; Brée, Carsten [Author]; Wörner, Michael [Author]; Elsaesser, Thomas [Author]; Steinmeyer, Günter [Author]

Non-instantaneous polarization dynamics in dielectric media

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  • Media type: Text; E-Book; Report
  • Title: Non-instantaneous polarization dynamics in dielectric media
  • Contributor: Hofmann, Michael [Author]; Hyyti, Janne [Author]; Birkholz, Simon [Author]; Bock, Martin [Author]; Das, Susanta [Author]; Grunwald, Rüdiger [Author]; Hoffmann, Mathias [Author]; Nagy, Tamas [Author]; Demircan, Ayhan [Author]; Jupé, Marco [Author]; Ristau, Detlev [Author]; Morgner, Uwe [Author]; Brée, Carsten [Author]; Wörner, Michael [Author]; Elsaesser, Thomas [Author]; Steinmeyer, Günter [Author]
  • imprint: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2014
  • Language: English
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.1961
  • Keywords: 42.30.Rx ; nonlinear optics -- ultrafast spectroscopy -- interferometric FROG -- pulse characterization -- time-dependent Schrödinger equation ; 78.20.Mg ; 78.20.-e ; 78.20.Bh ; article
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Third-order optical nonlinearities play a vital role for generation and characterization of some of the shortest optical pulses to date, for optical switching applications, and for spectroscopy. In many cases, nonlinear optical effects are used far off resonance, and then an instantaneous temporal response is expected. Here, we show for the first time resonant frequency-resolved optical gating measurements that indicate substantial nonlinear polarization relaxation times up to 6.5\,fs in dielectric media, i.e., significantly beyond the shortest pulses directly available from commercial lasers. These effects are among the fastest effects observed in ultrafast spectroscopy. Numerical solutions of the time-dependent Schr\"odinger equation are in excellent agreement with experimental observations. The simulations indicate that pulse generation and characterization in the ultraviolet may be severely affected by this previously unreported effect. Moreover, our approach opens an avenue for application of frequency-resolved optical gating as a highly selective spectroscopic probe in high-field physics.
  • Access State: Open Access