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Priv.-Doz. Dr. Götz Alexander Lehmann






Research interests

I am working in theoretical plasma physics, with special focus on relativistic laser-plasma interaction.
Of special interest to me are

  • Plasma-based photonic structures
  • Amplification of short, relativistic laser pulses in plasma via stimulated Raman and Brillouin processes,
  • Radiation damping in ultra-relativistic laser-plasma interaction,
  • Dynamics and stability of solitary structures in laser-plasma interactions,
  • Laser pulse self-compression via plasma non-linearities,
  • Numerical simulations of Maxwell-Fluid and Maxwell-Vlasov models.


Peer-reviewed publications

29.Formation and properties of spatially inhomogeneous plasma density gratings,
Phys. Rev. E 108, 055204 (2023),
G. Lehmann and K.H. Spatschek

28. The role of transient plasma photonic structures in plasma-based amplifiersReflection and transmission properties of a finite-length electron plasma grating,

Commun Phys 6, 9 (2023),
G. Vieux, S. Cipiccia, G. H. Welsh, S. R. Yoffe, F. Gärtner, M. P. Tooley, B. Ersfeld, E. Brunetti, B. Eliasson, C. Picken, G. McKendrick, M.S. Hur, J. M. Dias, T. Kühl, G. Lehmann, D. A. Jaroszynski

27. Reflection and transmission properties of a finite-length electron plasma grating,
 Matter Radiat. at Extremes 7, 5 (2022)
G. Lehmann and K.H. Spatschek

26.Wakefield stimulated terahertz radiation from a plasma grating,
Plasma Phys. Controlled Fusion 64 (3), 034001 (2022)
G. Lehmann and K.H. Spatschek

25. Plasma volume holograms for focusing and mode conversion of ultraintense laser pulses,
Phys. Rev. E 100, 033205 (2019),
G. Lehmann and K.H. Spatschek

24. Plasma photonic crystal growth in the trapping regime,
Phys. Plasmas 26, 013106 (2019),
G. Lehmann and K.H. Spatschek

23. Plasma-based polarizer and waveplate at large laser intensity,
Phys. Rev. E 97, 063201 (2018),
G. Lehmann and K.H. Spatschek

22. Parametric pulse amplification by acoustic quasimodes in electron-positron plasmas,
Phys. Rev. E 96, 053204 (2017),
F. Schluck, G. Lehmann, and K.H. Spatschek

21. Laser-driven plasma photonic crystals for high-power lasers,
Phys. Plasmas 24, 056701 (2017),
G. Lehmann and K.H. Spatschek

20. Dynamical transition from weakly to strongly couples Brillouin backscattering
during laser seed pulse amplification,
Phys. Plasmas 23, 0832015 (2016),
F. Schluck, G. Lehmann, C. Müller, and K.H. Spatschek

19. Broadband Stimulated Raman Backscattering,
New J. Phys. 18, 073048 (2016)
B. Landgraf, B. Aurand, G. Lehmann, T. Gangolf, M. Schnell, T. Kuehl, and C. Spielmann

18. Transient plasma photonic crystals for high-power lasers,
Phys. Rev. Lett. 116, 225002 (2016)
G. Lehmann and K.H. Spatschek

17. Efficient semi-Lagrangian Vlasov-Maxwell simulations of high order harmonic
generation from relativistic laser-plasma interactions,
Commun. Comput. Phys. 20, 583 (2016),
G. Lehmann

16. Temperature dependence of seed pulse amplitude and density grating
in Brillouin amplification,
Phys. Plasmas 23, 023107 (2016),
G. Lehmann and K.H. Spatschek

15. Amplification of a seed pumped by a chirped laser in the strong coupling Brillouin regime,
Phys. Plasmas 22, 093104 (2015),
F. Schluck, G.Lehmann, and K.H. Spatschek

14. Control of Brillouin short-pulse seed amplification by chirping the pump pulse,
Phys. Plasmas 22, 043105 (2015),
G. Lehmann and K.H. Spatschek

13. The behavior of the electron plasma boundary in ultraintense
laser–highly overdense plasma interaction,
Phys. Plasmas 21, 123107 (2014),
G.Sánchez-Arriaga, J. Sanz, A. Debayle, and G. Lehmann

12. Amplification of ultra-short light pulses by ion collective modes in plasmas
- The use of damage-less optics for high laser intensities
Eur. Phys. J. Special Topics 223, 1153 (2014),
A. Frank, J. Fuchs, L. Lancia, G. Lehmann, J.-R. Marquès, G. Mourou,
C. Riconda, K.H. Spatschek, T. Toncian, L. Vassura, S. Weber, and O. Willi

11. Non-filamentated ultra-intense and ultra-short pulse fronts in
three-dimensional Raman seed amplification
Phys. Plasmas 21, 053101 (2014),
 G. Lehmann and K.H. Spatschek

10. Nonlinear Brillouin amplification of finite-duration seeds in the strong coupling regime
Phys. Plasmas 20, 073112 (2013),
G.Lehmann and K.H.Spatschek

9. Pulse shaping during Raman-seed amplification for short laser pulses
Phys. Rev. E. 87, 063107 (2013), G. Lehmann, G. Sewell, and K.H. Spatschek

8. Regions for Brillouin seed pulse growth in relativistic laser-plasma interaction,
Phys. Plasmas 19, 093120 (2012) ,G. Lehmann, F. Schluck, and K.H. Spatschek

7. Phase-space contraction and attractors for ultra-relativistic electrons,
Phys. Rev. E 85, 056412 (2012) , G. Lehmann and K.H. Spatschek

6. Energy gain of an electron by a laser pulse in the presence of radiation reaction,
Phys. Rev. E 84, 046409 (2011) , G. Lehmann and K.H. Spatschek

5. Poincare analysis of wave motion in ultra-relativistic electron-ion plasmas,
Phys. Rev. E 83, 036401 (2011), G. Lehmann and K.H. Spatschek

4. Classification and stability of plasma motion in periodic linearly polarized relativistic waves,
Phys. Plasmas 17, 072102 (2010) , G. Lehmann and K.H. Spatschek

3. Two-dimensional dynamics of relativistic solitons in cold plasmas,
Phys. Plasmas 15, 072307 (2008) , G. Lehmann, E.W. Laedke, and K.H. Spatschek

2. Localized wake-field excitation and relativistic wave-breaking ,
Phys. Plasmas 14, 103109 (2007) , G. Lehmann, E.W. Laedke, and K.H. Spatschek

1. Stability and evolution of one-dimensional relativistic solitons on the ion time-scale,
Phys. Plasmas 13, 092302 (2006), G. Lehmann, E.W. Laedke, and K.H. Spatschek