A high-repetition rate scheme for synchrotron-based picosecond laser pump/x-ray probe experiments on chemical and biological systems in solution

Lima, Frederico A.; Milne, Christopher J.; Amarasinghe, Dimali C. V.; Rittmann-Frank, Mercedes Hannelore; Veen, Renske M. van der; Reinhard, Marco; Pham, Van-Thai; Karlsson, Susanne; Johnson, Steven L.; Grolimund, Daniel; Borca, Camelia; Huthwelker, Thomas; Janousch, Markus; van Mourik, Frank; Abela, Rafael; Chergui, Majed
June 2011
Review of Scientific Instruments;Jun2011, Vol. 82 Issue 6, p063111
Academic Journal
We present the extension of time-resolved optical pump/x-ray absorption spectroscopy (XAS) probe experiments towards data collection at MHz repetition rates. The use of a high-power picosecond laser operating at an integer fraction of the repetition rate of the storage ring allows exploitation of up to two orders of magnitude more x-ray photons than in previous schemes based on the use of kHz lasers. Consequently, we demonstrate an order of magnitude increase in the signal-to-noise of time-resolved XAS of molecular systems in solution. This makes it possible to investigate highly dilute samples at concentrations approaching physiological conditions for biological systems. The simplicity and compactness of the scheme allows for straightforward implementation at any synchrotron beamline and for a wide range of x-ray probe techniques, such as time-resolved diffraction or x-ray emission studies.


Related Articles

  • Five-element Johann-type x-ray emission spectrometer with a single-photon-counting pixel detector. Kleymenov, Evgeny; van Bokhoven, Jeroen A.; David, Christian; Glatzel, Pieter; Janousch, Markus; Alonso-Mori, Roberto; Studer, Marco; Willimann, Markus; Bergamaschi, Anna; Henrich, Beat; Nachtegaal, Maarten // Review of Scientific Instruments;Jun2011, Vol. 82 Issue 6, p065107 

    A Johann-type spectrometer with five spherically bent crystals and a pixel detector was constructed for a range of hard x-ray photon-in photon-out synchrotron techniques, covering a Bragg-angle range of 60°-88°. The spectrometer provides a sub emission line width energy resolution from...

  • Intrinsic timing jitter of superconducting nanowire single-photon detectors. Zhao, Q.; Zhang, L.; Jia, T.; Kang, L.; Xu, W.; Chen, J.; Wu, P. // Applied Physics B: Lasers & Optics;Sep2011, Vol. 104 Issue 3, p673 

    We report on an experimental investigation of the timing jitter (TJ) in a fiber-coupled detection system based on a superconducting nanowire single-photon detector (SNSPD). We used a picosecond pulsed laser and fiber delay lines to generate subsequent optical pulsed pairs in each period and...

  • Enhancement of hard x-ray emission from a copper target by multiple shots of femtosecond laser... Hironaka, Yoichiro; Fujimoto, Yasushi // Applied Physics Letters;3/22/1999, Vol. 74 Issue 12, p1645 

    Discusses the enhancement of hard x-ray emission from a copper target by multiple shots of femtosecond laser pulses. Temporal profile of the x rays; Increase of the short-pulse component; Relationship between the intensity enhancement and morphology of the irradiated target.

  • Frequency-domain photothermoacoustics: Alternative imaging modality of biological tissues. Telenkov, Sergey; Mandelis, Andreas; Lashkari, Bahman; Forcht, Michael // Journal of Applied Physics;May2009, Vol. 105 Issue 10, p102029 

    Frequency-domain photothermoacoustic (FD-PTA) imaging of biological tissues is presented and compared with the conventional time-domain methodology. We demonstrate that tissue imaging can be performed with high axial resolution without the necessity to employ short-pulse and high peak-power...

  • Surface sensitivity in scanning transmission x-ray microspectroscopy using secondary electron detection. Hub, C.; Wenzel, S.; Raabe, J.; Ade, H.; Fink, R. H. // Review of Scientific Instruments;Mar2010, Vol. 81 Issue 3, p033704 

    The successful integration of electron detection into an existing scanning transmission x-ray microspectroscope (STXM) at the Swiss Light Source is demonstrated. In conventional x-ray detection using a photomultiplier, STXM offers mainly bulk sensitivity combined with high lateral resolution....

  • Time-resolved x-ray photoabsorption and diffraction on timescales from ns to fs. Heimann, P. A.; Missalla, T.; Lindenberg, A.; Kang, I.; Johnson, S.; Chang, Z.; Kapteyn, H. C.; Lee, R. W.; Falcone, R. W.; Schoenlein, R. W.; Glover, T. E.; Zholents, A. A.; Zolotorev, M. S.; Padmore, H. A. // AIP Conference Proceedings;2000, Vol. 506 Issue 1, p664 

    Time-resolved x-ray diffraction with picosecond time resolution is used to observe scattering from coherent acoustic phonons in laser-excited InSb crystals. The observed oscillations in the crystal reflectivity are in agreement with a model based on dynamical diffraction theory. Synchrotron...

  • Soft x-ray emission produced by a sub-picosecond laser in a single- and double-pulse scheme. Pelletier, J. F.; Chaker, M.; Kieffer, J. C. // Journal of Applied Physics;5/1/1997, Vol. 81 Issue 9, p5980 

    The interaction of a high-contrast, 400 fs, 5 × 10[sub 17] W/cm² laser pulse with a preformed tantalum plasma produced in a double-pulse configuration is investigated. The x-ray emission characteristics are studied for different time delays between the two laser pulses. A time-resolved...

  • X-ray Spectroscopy Diagnostic of a Plasma Produced by Femtosecond Laser Pulses Irradiating a Cluster Target. Skobelev, I. Yu.; Faenov, A. Ya.; Magunov, A. I.; Pikuz, T. A.; Boldarev, A. S.; Gasilov, V. A.; Abdallach, J.; Junkel-Vives, G. C.; Auguste, T.; Dobosz, S.; d’Oliveira, P.; Hulin, S.; Monot, P.; Blasco, F.; Dorchies, F.; Caillaud, T.; Bonte, C.; Stenz, C.; Salin, F.; Loboda, P.A. // Journal of Experimental & Theoretical Physics;May2002, Vol. 94 Issue 5, p966 

    The parameters of a plasma produced upon the interaction of ultrashort laser pulses with cluster targets are measured by the methods of X-ray spectroscopy. The dependence of the plasma parameters on the initial properties of a cluster target (the design of a supersonic nozzle, the average size...

  • Enhanced X-ray Emission from Nitrogen Clusters Ionized by Intense, Ultrashort Laser Pulses. Mocek, T.; Park, J. J.; Kim, C. M.; Kim, H. T.; Lee, D. G.; Hong, K. H.; Nam, C. H. // AIP Conference Proceedings;2002, Vol. 641 Issue 1, p451 

    We report soft X-ray spectra from nitrogen clusters irradiated by 28-fs laser pulses at an intensity of about 7 x 10[SUP16] W/cm[SUP2]. While the spectrum obtained ar room temperature showed entirely transitions from N[SUP4+] ions, new lines originating from N[SUP5+] and N[SUP6+] charge states...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics