English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Signatures of self-modulation effects during pulse propagation in single-pulse absorption spectra

MPS-Authors
/persons/resource/persons30892

Pfeifer,  Thomas
Division Prof. Dr. Thomas Pfeifer, MPI for Nuclear Physics, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

He, Y., Liu, Z., Cui, Z., Zhang, Y., Pfeiffer, A. N., Pfeifer, T., et al. (2019). Signatures of self-modulation effects during pulse propagation in single-pulse absorption spectra. Physical Review A, 99(5): 053418. doi:10.1103/PhysRevA.99.053418.


Cite as: http://hdl.handle.net/21.11116/0000-0005-4CDC-F
Abstract
The absorption spectrum of a bound state with a finite lifetime gives rise to the well-known Lorentzian line shape. This fundamental mechanism breaks down at high intensities. Here we demonstrate how even a single intense multicycle excitation pulse can result in Fano absorption profiles in the frequency domain. The intensity-dependent line shapes indicate the dipole responses are phase modulated by the single excitation pulse itself. Further, as the atomic density increases, we observe broader Fano-like shapes and the appearance of novel substructures in absorption lines. These are clear signatures of propagation effects in which collective interactions need to be taken into account. An analytical model is applied, which describes both effects observed in the experiment. Understanding the transition from optically dilute to dense medium is crucial to distinguish between single-atom and macroscopic effects.