Broadband soft X-ray source from a clustered gas target dedicated to high-resolution XCT and X-ray absorption spectroscopy
Janulewicz KA, Wegrzynski L, Fok T, Bartnik A, Fiedorowicz H, Skruszewicz S, Wuensche M, Eckner E, Fuchs S, Reinhard J, Abel JJ, Wiesner F, Paulus GG, Roedel C, Kim CM, Wachulak PW (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 30
Pages Range: 47867-47878
Journal Issue: 26
DOI: 10.1364/OE.477726
Abstract
The development of the broad-bandwidth photon sources emitting in the soft X-ray range has attracted great attention for a long time due to the possible applications in high-resolution spectroscopy, nano-metrology, and material sciences. A high photon flux accompanied by a broad, smooth spectrum is favored for the applications such as near-edge X-ray absorption fine structure (NEXAFS), extended X-ray absorption fine structure (EXAFS), or XUV/X-ray coherence tomography (XCT). So far, either large-scale facilities or technologically challenging systems providing only limited photon flux in a single shot dominate the suitable sources. Here, we present a soft, broad-band (1.5 nm - 10.7 nm) soft X-ray source. The source is based on the interaction of very intense laser pulses with a target formed by a cluster mixture. A photon yield of 2.4 × 1014 photons/pulse into 4π (full space) was achieved with a medium containing Xe clusters of moderate-size mixed with a substantial amount of extremely large ones. It is shown that such a cluster mixture enhances the photon yield in the soft X-ray range by roughly one order of magnitude. The size of the resulting source is not beneficial (≤500 µm but this deficit is compensated by a specific spectral structure of its emission fulfilling the specific needs of the spectroscopic (broad spectrum and high signal dynamics) and metrological applications (broad and smoothed spectrum enabling a sub-nanometer resolution limit for XCT).
Involved external institutions
Military University of Technology in Warsaw / Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego w Warszawie
Poland (PL)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
Friedrich-Schiller-Universität Jena
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
Gwangju Institute of Science and Technology (GIST) / 광주과학기술원
Korea, Republic of (KR)
Poland (PL)
Deutsches Elektronen-Synchrotron DESY
Germany (DE)
Friedrich-Schiller-Universität Jena
Germany (DE)
Technische Universität Darmstadt
Germany (DE)
Gwangju Institute of Science and Technology (GIST) / 광주과학기술원
Korea, Republic of (KR)
How to cite
APA:
Janulewicz, K.A., Wegrzynski, L., Fok, T., Bartnik, A., Fiedorowicz, H., Skruszewicz, S.,... Wachulak, P.W. (2022). Broadband soft X-ray source from a clustered gas target dedicated to high-resolution XCT and X-ray absorption spectroscopy. Optics Express, 30(26), 47867-47878. https://doi.org/10.1364/OE.477726
MLA:
Janulewicz, Karol A., et al. "Broadband soft X-ray source from a clustered gas target dedicated to high-resolution XCT and X-ray absorption spectroscopy." Optics Express 30.26 (2022): 47867-47878.
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