• Skip to Management
  • Skip to Main menu
  • Skip to Page content
Adlershof Logo
  • WISTA
  • WISTA.Plan
  • WISTA.Service
WISTA direkt
Search
  • de
  • en
  • Adlershof Logo
  • About / Directory
    • Companies / Institutes
    • Science City in numbers
    • Direction / Maps
      • Bus / Train
      • By Car
      • Bicycle
      • Orientation / Maps
      • Trail of Thoughts
  • Newsroom
    • Overview
    • News
      • Social Media Stream
      • Success Stories
    • Events / Calendar
      • Adlershof Dissertation Award
      • Adlershof Research Forum
      • Long Night of Sciences Berlin
    • Adlershof Journal
    • Hot Topics
      • Adlershof Mission "Grand Challenges"
      • Circular Economy
      • Digital infra­structure / 5G campus network
    • Photos / Flyer / Downloads
      • Magazine archive
    • WISTA-Editorial Staff
  • Science / Technology
    • Overview
    • Technology Centres
      • Photonics / Optics
      • Biotech­nology / Envi­ron­ment
      • Micro­systems / Materi­als
      • IT / Media
      • Renewable Energy / Photovoltaics
    • Non-university Research
    • Universities / Colleges
      • Humboldt-Universität zu Berlin
      • Services for Students
    • Young Talents / STEM / School Labs
    • Start-Ups
      • Adlershof Start-Up Centre IGZ
      • Adlershof Founder’s Lab
    • Networks / Management
      • Campus Club Adlershof
  • TV / Media
    • TV and Movie Production
    • Media Services / Companies
    • News and Events
    • Filming Locations
    • Costume Hire
    • GDR Film Archive
    • Tickets / Booking
  • Properties
    • Overview
    • Real Estate Rent
      • Office Space / Workspace / Laboratories
    • Real Estate Offers
      • Commercial Properties
    • ST3AM Working Environments / Coworking
    • Residential
    • Construction
      • Building Projects
      • Architecture
      • Webcam
  • Service
    • Overview
    • Gastronomy / Sport / Culture / Shopping
    • Jobs / Market
    • Social and Healthcare Facilities
    • WISTA-Business Services
    • Event Services / Guided Tours / Hotels
    • Facility Management
    • Downloads / Photos / Videos
    • Jobs for Refugees
  • Hood
    • Overview
    • History
    • Nature Park
    • Culture
    • Technology Park
    • Digital Tours
  • WISTA
  • WISTA.Plan
  • WISTA.Service
WISTA direkt

News

  • Overview
  • News
  • Events / Calendar
  • Adlershof Journal
  • Hot Topics
  • Photos / Flyer / Downloads
  • WISTA-Editorial Staff
  • Adlershof
  • Newsroom
  • News
04. May 2018

MBI research results refine our understanding of strong-field processes

Laser-driven electron recollision remembers molecular orbital structure

electronic wavepackets
Continuum electronic wavepackets for strong-field ionization channel 1 and 2 in 1,3-trans-butadiene shortly after ionization. | Fig. MBI

Scientists from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI) in Berlin combined state-of-the-art experiments and numerical simulations to test a fundamental assumption underlying strong-field physics. Their results refine our understanding of strong-field processes such as high harmonic generation (HHG) and laser-induced electron diffraction (LIED). The results have been published in "Science Advances".

Strong infrared laser pulses can extract an electron from a molecule (ionization), accelerate it away into free space, then turn it around (propagation), and finally collide it with the molecule (recollision). This is the widely used three-step model of strong-field physics. In the recollision step, the electron may, for example, recombine with the parent ion, giving rise to high harmonic generation, or scatter elastically, giving rise to laser-induced electron diffraction.

One of the commonly used assumptions underlying attosecond physics is that, in the propagation step, the initial structure of the ionized electron is "washed out", thus losing the information on the originating orbital. So far, this assumption was not experimentally verified in molecular systems.

A combined experimental and theoretical study at the Max Born Institute Berlin investigated the strong-field driven electron recollision dynamics in the 1,3-trans-butadiene molecule. In this molecule, the interaction with the strong laser field leads mainly to the ionization of two outermost electrons exhibiting quite different densities, see Figure 1. The state-of-the-art experiments and simulations then allowed the scientists to measure and calculate the high-angle rescattering probability for each electron separately. These probabilities turned out to be quite different both in the measurements and in the simulations. These observations clearly demonstrate that the returning electrons do retain structural information on their initial molecular orbital.

Original publication:
"Molecular orbital imprint in laser-driven electron recollision"
Felix Schell, Timm Bredtmann, Claus Peter Schulz, Serguei Patchkovskii, Marc J. J. Vrakking and Jochen Mikosch
Science Advances, Vol. 4, no. 5, eaap8148 (2018), DOI: 10.1126/sciadv.aap8148

 

Contact:

Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy
Dr. Jochen Mikosch, Email mikosch(at)mbi-berlin.de, Tel. +49 30 6392-1295
Dr. Timm Bredtmann, Email bredtman(at)mbi-berlin.de, Tel. +49 30 6392-1251
www.mbi-berlin.de

Forschungsverbund Berlin e.V.
Anja Wirsing, Press Officer
Rudower Chaussee 17, 12489 Berlin
Tel.: +49 30 6392-3337
Email: wirsing(at)fv-berlin.de
www.fv-berlin.de

  • LinkedInshare0
  • Facebookshare0
  • WhatsAppshare0
  • E-Mail

The development of the Science and Technology Park Berlin Adlershof was and is co-financed by the European Union namely by EFRE. This concerns infrastructure development like construction of technology centres. Furthermore EFRE is used for international projects.

  • © WISTA Management GmbH
  • Legal Notice
  • Privacy Policy
  • Social Media Guide
  • FAQ
  • Contact
  • Press
  • Newsletter
  • RSS
  • International
Member of:
Zukunftsort Adlershof Logo