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Explosion dynamics of sucrose nanospheres monitored by time of flight spectrometry and coherent diffractive imaging at the split-and-delay beam line of the FLASH soft X-ray laser
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
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2014 (English)In: Optics Express, ISSN 1094-4087, E-ISSN 1094-4087, Vol. 22, no 23, 28914-28925 p.Article in journal (Refereed) Published
Abstract [en]

We use a Mach-Zehnder type autocorrelator to split and delay XUV pulses from the FLASH soft X-ray laser for triggering and subsequently probing the explosion of aerosolised sugar balls. FLASH was running at 182 eV photon energy with pulses of 70 fs duration. The delay between the pump-probe pulses was varied between zero and 5 ps, and the pulses were focused to reach peak intensities above 1016 W/cm2 with an off-axis parabola. The direct pulse triggered the explosion of single aerosolised sucrose nano-particles, while the delayed pulse probed the exploding structure. The ejected ions were measured by ion time of flight spectrometry, and the particle sizes were measured by coherent diffractive imaging. The results show that sucrose particles of 560-1000 nm diameter retain their size for about 500 fs following the first exposure. Significant sample expansion happens between 500 fs and 1 ps. We present simulations to support these observations.

Place, publisher, year, edition, pages
2014. Vol. 22, no 23, 28914-28925 p.
Keyword [en]
UV, EUV, and X-ray lasers, Coherence imaging, Spectroscopy, ionization
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:uu:diva-237616DOI: 10.1364/OE.22.028914ISI: 000345268500111PubMedID: 25402130OAI: oai:DiVA.org:uu-237616DiVA: diva2:768375
Available from: 2014-12-03 Created: 2014-12-03 Last updated: 2017-12-05Bibliographically approved

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Publisher's full textPubMedhttp://www.opticsexpress.org/abstract.cfm?URI=oe-22-23-28914

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Timneanu, NicusorMaia, Filipe R. N. C.Bielecki, JohanSvenda, MartinHasse, DirkCarlsson, GunillaWestphal, DanielMühlig, KerstinHantke, MaxEkeberg, TomasSeibert, M. MarvinZani, AlessandroHajdu, JanosAndreasson, Jakob

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Timneanu, NicusorMaia, Filipe R. N. C.Bielecki, JohanSvenda, MartinHasse, DirkCarlsson, GunillaWestphal, DanielMühlig, KerstinHantke, MaxEkeberg, TomasSeibert, M. MarvinZani, AlessandroHajdu, JanosAndreasson, Jakob
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Molecular biophysics
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Atom and Molecular Physics and Optics

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