A. Weinmann

ORCID: 0009-0008-7219-1949
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About
Contact & Profiles
Research Areas
  • Terahertz technology and applications
  • Spectroscopy and Quantum Chemical Studies
  • Semiconductor materials and interfaces
  • Spectroscopy and Laser Applications
  • Force Microscopy Techniques and Applications
  • Remote Sensing in Agriculture
  • Environmental and Agricultural Sciences
  • Surface and Thin Film Phenomena
  • Advanced Chemical Physics Studies
  • Welding Techniques and Residual Stresses
  • Photonic and Optical Devices
  • Electron and X-Ray Spectroscopy Techniques
  • nanoparticles nucleation surface interactions
  • Advanced Materials Characterization Techniques
  • Laser Material Processing Techniques
  • Semiconductor Quantum Structures and Devices

SLAC National Accelerator Laboratory
2018-2024

Menlo School
2018-2024

Universität der Bundeswehr München
2018-2024

Massachusetts Institute of Technology
2018

Stanford University
2018

We describe measurements of the DC electrical conductivity warm dense matter using ultrafast terahertz (THz) pulses. THz fields are sufficiently slowly varying that they behave like on timescale electron–electron and electron–ion interactions hence probe DC-like responses. Using a novel single-shot electro-optic sampling technique, laser-generated was determined with <1 ps temporal resolution. present details detection methodology as well considerations for experiments. We, then,...

10.1063/5.0193854 article EN cc-by Physics of Plasmas 2024-04-01

Abstract Key insights in materials at extreme temperatures and pressures can be gained by accurate measurements that determine the electrical conductivity. Free-electron laser pulses ionize excite matter out of equilibrium on femtosecond time scales, modifying electronic ionic structures enhancing scattering properties. The transient evolution conductivity manifests energy coupling from high temperature electrons to low ions. Here we combine accelerator-based, high-brightness multi-cycle...

10.1038/s41467-021-21756-6 article EN cc-by Nature Communications 2021-03-12

We present an experimental setup capable of measuring the near DC conductivity laser generated warm dense matter using single-shot terahertz time-domain spectroscopy. The uses a reflective echelon and balanced detection to record THz waveforms with minimum detectable signal 0.2% in single pulse. describe details data analysis procedure transmission on aluminum that has been heated electron temperature 0.5 eV.

10.1063/1.5038944 article EN Review of Scientific Instruments 2018-08-13
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