Enabling instrumentation and technology for 21st century light sources

Byrd, J.; Shea, Thomas; Denes, P.; Siddons, P.; Attwood, David; Kaertner, F. X.; Moog, L.; Li, Y.; Sakdinawat, Anne; Schlueter, R.

doi:10.1016/j.nima.2010.06.244

Cited by 7 publications

(4 citation statements)

References 36 publications

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“…FZPs can be made with large diameters, and the ease of alignment makes them convenient to use. The radiation hardness of such devices consisting of nano-structures placed on thin x-ray transparent membranes has been questioned, and even scenarios to use disposable, single-shot zone plates in XFEL experiments have been considered 12 . Recent simulations indicate, however, that the degradation of FZPs in an XFEL beam strongly depends on the materials involved in the manufacturing process 13 .…”

mentioning

confidence: 99%

Nanofocusing of hard X-ray free electron laser pulses using diamond based Fresnel zone plates

Dávid

Gorelick

Rutishauser

et al. 2011

Sci Rep

138

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A growing number of X-ray sources based on the free-electron laser (XFEL) principle are presently under construction or have recently started operation. The intense, ultrashort pulses of these sources will enable new insights in many different fields of science. A key problem is to provide x-ray optical elements capable of collecting the largest possible fraction of the radiation and to focus into the smallest possible focus. As a key step towards this goal, we demonstrate here the first nanofocusing of hard XFEL pulses. We developed diamond based Fresnel zone plates capable of withstanding the full beam of the world's most powerful x-ray laser. Using an imprint technique, we measured the focal spot size, which was limited to 320 nm FWHM by the spectral band width of the source. A peak power density in the focal spot of 4×1017 W/cm2 was obtained at 70 fs pulse length.

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mentioning

confidence: 99%

Nanofocusing of hard X-ray free electron laser pulses using diamond based Fresnel zone plates

Dávid

Gorelick

Rutishauser

et al. 2011

Sci Rep

138

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“…For example, the energy jitter of the chirped beam at the entrance of the first bunch compressor results in the time jitter of the beam. Those challenges might be solved in the future with the rapid advance of the laser technology and the electron beam instrumentation technology [22,23]. Using a combination of feedback control and nonlinear optical limiter technology, the fluctuation of the laser field might be controlled within the tenth percentage level [24].…”

Section: Discussionmentioning

confidence: 99%

Generation of attosecond coherent X-ray radiation through modulation compression

Qiang

2011

Journal of Modern Optics

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In this paper, we propose a scheme to generate tunable attosecond coherent X-ray radiation for future light source applications. This scheme uses a short-pulse seeding laser, two bunch compressors, and a laser chirper to generate a prebunched, kilo-Ampere current electron beam from an initial 10-Ampere low-current electron beam. Such an electron beam sent into a short undulator generates attosecond coherent soft X-ray radiation. The final X-ray radiation wavelength can be tuned by adjusting the compression factor. It also allows one to control the final radiation pulse length by controlling the seeding laser pulse length or the compression factor. As an illustration, we present an example to generate 1 GW, 200 attosecond, 1 nm coherent X-ray radiation from a 28 A current, 200 nm laser modulated beam.

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“…The zone plate [40] was prepared using several nanofabrication processes. It was fabricated on a 100 nm thin Si 3 N 4 -membrane.…”

Section: Methodsmentioning

confidence: 99%

X-ray holographic microscopy with zone plates applied to biological samples in the water window using 3rd harmonic radiation from the free-electron laser FLASH

Gorniak¹,

Heine²,

Mancuso³

et al. 2011

Opt. Express

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Abstract:The imaging of hydrated biological samples -especially in the energy window of 284-540 eV, where water does not obscure the signal of soft organic matter and biologically relevant elements -is of tremendous interest for life sciences. Free-electron lasers can provide highly intense and coherent pulses, which allow single pulse imaging to overcome resolution limits set by radiation damage. One current challenge is to match both the desired energy and the intensity of the light source. We present the first images of dehydrated biological material acquired with 3rd harmonic radiation from FLASH by digital in-line zone plate holography as one step towards the vision of imaging hydrated biological material with photons in the water window. We also demonstrate the first application of ultrathin molecular sheets as suitable substrates for future free-electron laser experiments with biological samples in the form of a rat fibroblast cell and marine biofouling bacteria Cobetia marina. ©2011 Optical Society of America References and links1. C. A. Brau, "Free-electron lasers," Science 239(4844), 1115-1121 (1988). 2. J. Feldhaus, J. Arthur, and J. Hastings, "X-ray free-electron lasers," J. Phys. B: At. Mol. Opt. Phys. 38(9), S799-S819 (2005

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Enabling instrumentation and technology for 21st century light sources

Cited by 7 publications

References 36 publications

Nanofocusing of hard X-ray free electron laser pulses using diamond based Fresnel zone plates

Nanofocusing of hard X-ray free electron laser pulses using diamond based Fresnel zone plates

Generation of attosecond coherent X-ray radiation through modulation compression

X-ray holographic microscopy with zone plates applied to biological samples in the water window using 3rd harmonic radiation from the free-electron laser FLASH

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