Differential near-edge coherent diffractive imaging using a femtosecond high-harmonic XUV light source

AbstractWe report on the status of a users’ end-station, MAC: a Multipurpose station for Atomic, molecular and optical sciences and Coherent diffractive imaging, designed for studies of structure and dynamics of matter in the femtosecond time-domain. MAC is located in the E1 experimental hall on the high harmonic generation (HHG) beamline of the ELI Beamlines facility. The extreme ultraviolet beam from the HHG beamline can be used at the MAC end-station together with a synchronized pump beam (which will cover the NIR/Vis/UV or THz range) for time-resolved experiments on different samples. Sample delivery systems at the MAC end-station include a molecular beam, a source for pure or doped clusters, ultrathin cylindrical or flat liquid jets, and focused beams of substrate-free nanoparticles produced by an electrospray or a gas dynamic virtual nozzle combined with an aerodynamic lens stack. We further present the available detectors: electron/ion time-of-flight and velocity map imaging spectrometers and an X-ray camera, and discuss future upgrades: a magnetic bottle electron spectrometer, production of doped nanodroplets and the planned developments of beam capabilities at the MAC end-station.

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Coherent diffractive imaging of single helium nanodroplets with a high harmonic generation source

Nature Communications ◽

10.1038/s41467-017-00287-z ◽

2017 ◽

Vol 8 (1) ◽

Cited By ~ 38

Author(s):

Daniela Rupp ◽

Nils Monserud ◽

Bruno Langbehn ◽

Mario Sauppe ◽

Julian Zimmermann ◽

...

Keyword(s):

Harmonic Generation ◽

High Harmonic ◽

High Harmonic Generation ◽

Diffractive Imaging ◽

Helium Nanodroplets ◽

Coherent Diffractive Imaging

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Coherent Diffractive Imaging Using Table-top High Harmonic Generation

Communications in Physics ◽

10.15625/0868-3166/28/2/12595 ◽

2018 ◽

Vol 28 (2) ◽

pp. 97

Author(s):

Khuong Ba Dinh ◽

Khoa Anh Tran ◽

Peter Hannaford ◽

Lap Van Dao

Keyword(s):

Extreme Ultraviolet ◽

High Harmonic ◽

Theoretical Description ◽

Diffractive Imaging ◽

Coherent Diffractive Imaging ◽

Microscopy Technique ◽

Narrow Bandwidth ◽

High Resolution Images ◽

Harmonic Source ◽

Short Wavelength Light

Coherent diffractive imaging (CDI) is a lensless microscopy technique in which the structure of a specimen of interest is probed using a coherent short-wavelength light source. CDI has been widely used in nanotechnology and structural biology to capture high resolution images of non-crystalline objects. In this paper, we review the theoretical and experimental aspects of coherent diffractive imaging using a focused narrow-bandwidth table-top high harmonic source. The review begins with an outline of generation and characterization of the high harmonic source. Theoretical description of coherent diffractive imaging technique is then summarized. The review concludes with our recent results in imaging using a single harmonic beam selected by employing XUV focusing mirrors. These achievements provide a promising technique for the non-crystallographic structural determination of membrane proteins using a table-top extreme ultraviolet source.

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Ptychography at the Linac Coherent Light Source in a parasitic geometry

Journal of Applied Crystallography ◽

10.1107/s1600576720010778 ◽

2020 ◽

Vol 53 (5) ◽

pp. 1276-1282

Author(s):

Benjamin A. Pound ◽

Kevin M. Mertes ◽

Adra V. Carr ◽

Matthew H. Seaberg ◽

Mark S. Hunter ◽

...

Keyword(s):

Light Source ◽

Imaging Technique ◽

Free Electron Lasers ◽

Coherent Light ◽

Diffractive Imaging ◽

X Ray ◽

Coherent Diffractive Imaging ◽

Research Fields ◽

Linac Coherent Light Source ◽

Coherent Light Source

X-ray free-electron lasers (FELs) are being recognized as a powerful tool in an ever-increasing number of research fields, but are very limited as to the number of experiments that they can support. This work shows that more beamtime could be made available by using `parasitic' geometries, where a secondary experiment uses the X-ray beam that the primary experiment does not utilize. The first successful ptychography experiment, a scanning coherent diffractive imaging technique, in a parasitic geometry at an X-ray FEL is demonstrated. Utilizing the CXI hutch at the Linac Coherent Light Source (LCLS), it is shown that the obtained data are of high quality and that characterizing the beam using ptychography can be much faster than traditional imprinting methods.

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