Single-shot visualization of evolving plasma wakefields

Zhengyan Li, Hai En Tsai, Xi Zhang, Chih Hao Pai, Yen Yu Chang, Rafal Zgadzaj, Xiaoming Wang, Vladimir Khudik, Gennady Shvets, Michael C. Downer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations


We measure the evolution history of terawatt-laser driven plasma wakefields in the nonlinear bubble regime using an all-optical frequency-domain streak camera (FDSC) technique. The longitudinal profiles of the plasma "bubble" at different propagation distances within a 3 mm long ionized helium gas target are imaged in single shots, illustrating formation, propagation and coalescence of the bubble. 3D particle-in-cell (PIC) simulations validate the observed density-dependent bubble evolution, and correlate it with generation of a quasi-monoenergetic ∼ 100 MeV electron beam. To visualize petawatt-laser- or e-beam driven plasma wakefields, FDSC is extended to multi-object-plane imaging (MOPI) to measure evolution of wakefield transverse profiles over acceleration distance up to ∼ 1 m in a single shot.

Original languageEnglish
Title of host publicationAdvanced Accelerator Concepts 2014
Subtitle of host publication16th Advanced Accelerator Concepts Workshop
EditorsMark J. Hogan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735414396
StatePublished - 28 Oct 2016
Event16th Advanced Accelerator Concepts Workshop, AAC 2014 - San Jose, United States
Duration: 13 Jul 201418 Jul 2014

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference16th Advanced Accelerator Concepts Workshop, AAC 2014
Country/TerritoryUnited States
CitySan Jose


  • bubble evolution
  • frequency-domain streak camera
  • multi-object-plane imaging
  • singe-shot


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