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  Strongly aligned gas-phase molecules at free-electron lasers.

Kierspel, T., Wiese, J., Mullins, T., Robinson, J., Aquila, A., Barty, A., et al. (2015). Strongly aligned gas-phase molecules at free-electron lasers. Journal of Physics B: Atomic, Molecular and Optical Physics, 48(20): 204002. doi:10.1088/0953-4075/48/20/204002.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-0167-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-016A-9
Genre: Journal Article

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2364574.pdf (Publisher version), 2MB
 
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 Creators:
Kierspel, T., Author
Wiese, J., Author
Mullins, T., Author
Robinson, J., Author
Aquila, A., Author
Barty, A., Author
Bean, R., Author
Boll, R.1, Author              
Boutet, S., Author
Bucksbaum, P. H., Author
Chapman, H. N., Author
Christensen, L., Author
Fry, A., Author
Hunter, M., Author
Koglin, J. E., Author
Liang, M., Author
Mariani, V., Author
Morgan, A., Author
Natan, A., Author
Petrovic, V., Author
Rolles, D., AuthorRudenko, A., AuthorSchnorr, K., AuthorStapelfeldt, H., AuthorStern, S., AuthorThogersen, J., AuthorYoon, C. H., AuthorWang, F., AuthorTrippel, S., AuthorKüpper, J., Author more..
Affiliations:
1Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society, ou_578564              

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 Abstract: We demonstrate a novel experimental implementation to strongly align molecules at full repetition rates of free-electron lasers. We utilized the available in-house laser system at the coherent x-ray imaging beamline at the linac coherent light source. Chirped laser pulses, i.e., the direct output from the regenerative amplifier of the Ti:Sa chirped pulse amplification laser system, were used to strongly align 2, 5-diiodothiophene molecules in a molecular beam. The alignment laser pulses had pulse energies of a few mJ and a pulse duration of 94 ps. A degree of alignment of $\langle {\mathrm{cos}}^{2}{\theta }_{2{\rm{D}}}\rangle =0.85$ was measured, limited by the intrinsic temperature of the molecular beam rather than by the available laser system. With the general availability of synchronized chirped-pulse-amplified near-infrared laser systems at short-wavelength laser facilities, our approach allows for the universal preparation of molecules tightly fixed in space for experiments with x-ray pulses.

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Language(s): eng - English
 Dates: 2015-09-16
 Publication Status: Published online
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 Rev. Method: Peer
 Identifiers: DOI: 10.1088/0953-4075/48/20/204002
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Title: Journal of Physics B: Atomic, Molecular and Optical Physics
Source Genre: Journal
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Pages: 7 Volume / Issue: 48 (20) Sequence Number: 204002 Start / End Page: - Identifier: -