Single-shot determination of focused FEL wave fields using iterative phase retrieval

Masoud Mehrjoo, Klaus Giewekemeyer, Patrik Vagovič, Stephan Stern, Richard Bean, Marc Messerschmidt, Barbara Keitel, Elke Plönjes, Marion Kuhlmann, Tobias Mey, Evgeny A. Schneidmiller, Mikhail V. Yurkov, Torsten Limberg, Adrian P. Mancuso

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Determining fluctuations in focus properties is essential for many experiments at Self-Amplified-Spontaneous-Emission (SASE) based Free-Electron-Lasers (FELs), in particular for imaging single non-crystalline biological particles. We report on a diffractive imaging technique to fully characterize highly focused, single-shot pulses using an iterative phase retrieval algorithm, and benchmark it against an existing Hartmann wavefront sensor. The results, both theoretical and experimental, demonstrate the effectiveness of this technique to provide a comprehensive and convenient shot-to-shot measurement of focused-pulse wave fields and source-point positional variations without the need for manipulative optics between the focus and the detector.

Original languageEnglish (US)
Pages (from-to)17892-17903
Number of pages12
JournalOptics Express
Volume25
Issue number15
DOIs
StatePublished - Jul 24 2017
Externally publishedYes

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free electron lasers
shot
retrieval
pulses
imaging techniques
spontaneous emission
point sources
optics
sensors
detectors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Mehrjoo, M., Giewekemeyer, K., Vagovič, P., Stern, S., Bean, R., Messerschmidt, M., ... Mancuso, A. P. (2017). Single-shot determination of focused FEL wave fields using iterative phase retrieval. Optics Express, 25(15), 17892-17903. https://doi.org/10.1364/OE.25.017892

Single-shot determination of focused FEL wave fields using iterative phase retrieval. / Mehrjoo, Masoud; Giewekemeyer, Klaus; Vagovič, Patrik; Stern, Stephan; Bean, Richard; Messerschmidt, Marc; Keitel, Barbara; Plönjes, Elke; Kuhlmann, Marion; Mey, Tobias; Schneidmiller, Evgeny A.; Yurkov, Mikhail V.; Limberg, Torsten; Mancuso, Adrian P.

In: Optics Express, Vol. 25, No. 15, 24.07.2017, p. 17892-17903.

Research output: Contribution to journalArticle

Mehrjoo, M, Giewekemeyer, K, Vagovič, P, Stern, S, Bean, R, Messerschmidt, M, Keitel, B, Plönjes, E, Kuhlmann, M, Mey, T, Schneidmiller, EA, Yurkov, MV, Limberg, T & Mancuso, AP 2017, 'Single-shot determination of focused FEL wave fields using iterative phase retrieval', Optics Express, vol. 25, no. 15, pp. 17892-17903. https://doi.org/10.1364/OE.25.017892
Mehrjoo, Masoud ; Giewekemeyer, Klaus ; Vagovič, Patrik ; Stern, Stephan ; Bean, Richard ; Messerschmidt, Marc ; Keitel, Barbara ; Plönjes, Elke ; Kuhlmann, Marion ; Mey, Tobias ; Schneidmiller, Evgeny A. ; Yurkov, Mikhail V. ; Limberg, Torsten ; Mancuso, Adrian P. / Single-shot determination of focused FEL wave fields using iterative phase retrieval. In: Optics Express. 2017 ; Vol. 25, No. 15. pp. 17892-17903.
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