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X-ray free-electron laser studies of dense plasmas

Part of: Culham Thesis Prize Winners

Published online by Cambridge University Press:  31 July 2015

Sam M. Vinko
Sam M. Vinko*
Affiliation:
Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK
*
†Email address for correspondence: sam.vinko@physics.ox.ac.uk
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Abstract

The high peak brightness of X-ray free-electron lasers (FELs), coupled with X-ray optics enabling the focusing of pulses down to sub-micron spot sizes, provides an attractive route to generating high energy-density systems on femtosecond time scales, via the isochoric heating of solid samples. Once created, the fundamental properties of these plasmas can be studied with unprecedented accuracy and control, providing essential experimental data needed to test and benchmark commonly used theoretical models and assumptions in the study of matter in extreme conditions, as well as to develop new predictive capabilities. Current advances in isochoric heating and spectroscopic plasma studies on X-ray FELs are reviewed and future research directions and opportunities discussed.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 5 , October 2015 , 365810501
Copyright
© Cambridge University Press 2015 

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References

Bambynek, W., Crasemann, B., Fink, R. W., Freund, H. U., Mark, H., Swift, C. D., Price, R. E. & Rao, P. V. 1972 X-ray fluorescence yields, Auger, and Coster–Kronig transition probabilities. Rev. Mod. Phys. 44 (4), 716–813.Google Scholar
Calisti, A., Ferri, S. & Talin, B. 2015 Ionization potential depression in hot dense plasmas through a pure classical model. Contrib. Plasma Phys. 55 (5), 360–365.Google Scholar
Cho, B., Engelhorn, K., Correa, A., Ogitsu, T., Weber, C., Lee, H., Feng, J., Ni, P., Ping, Y., Nelson, A., Prendergast, D., Lee, R., Falcone, R. & Heimann, P. 2011 Electronic structure of warm dense copper studied by ultrafast x-ray absorption spectroscopy. Phys. Rev. Lett. 106, 167601.Google Scholar
Cho, B. I., Engelhorn, K., Vinko, S. M., Chung, H.-K., Ciricosta, O., Rackstraw, D. S., Falcone, R. W., Brown, C. R. D., Burian, T., Chalupský, J., Graves, C., Hájková, V., Higginbotham, A., Juha, L., Krzywinski, J., Lee, H. J., Messersmidt, M., Murphy, C., Ping, Y., Rohringer, N., Scherz, A., Schlotter, W., Toleikis, S., Turner, J. J., Vysin, L., Wang, T., Wu, B., Zastrau, U., Zhu, D., Lee, R. W., Nagler, B., Wark, J. S. & Heimann, P. A. 2012 Resonant $K{\it\alpha}$ spectroscopy of solid-density aluminum plasmas. Phys. Rev. Lett. 109 (24), 245003.Google Scholar
Ciricosta, O.2014 Radiative properties of hot dense matter 2014. Density Independent Continuum Lowering in Hot Dense Matter, In https://sites.google.com/site/rphdm14/schedule-abstracts.Google Scholar
Ciricosta, O., Vinko, S. M., Chung, H.-K., Cho, B.-I., Brown, C. R. D., Burian, T., Chalupský, J., Engelhorn, K., Falcone, R. W., Graves, C., Hájková, V., Higginbotham, A., Juha, L., Krzywinski, J., Lee, H. J., Messerschmidt, M., Murphy, C. D., Ping, Y., Rackstraw, D. S., Scherz, A., Schlotter, W., Toleikis, S., Turner, J. J., Vysin, L., Wang, T., Wu, B., Zastrau, U., Zhu, D., Lee, R. W., Heimann, P., Nagler, B. & Wark, J. S. 2012 Direct measurements of the ionization potential depression in a dense plasma. Phys. Rev. Lett. 109, 065002.Google Scholar
Crowley, B. J. B. 2014 Continuum lowering: a new perspective. High Energ. Dens. Phys. 13, 84–102.Google Scholar
Dharma-wardana, M. W. C. & Perrot, F. 1992 Level shifts, continuum lowering, and the mobility edge in dense plasmas. Phys. Rev. A 45 (8), 5883–5896.Google Scholar
Di Cicco, A., Hatada, K., Giangrisostomi, E., Gunnella, R., Bencivenga, F., Principi, E., Masciovecchio, C. & Filipponi, A. 2014 Interplay of electron heating and saturable absorption in ultrafast extreme ultraviolet transmission of condensed matter. Phys. Rev. B 90, 220303.Google Scholar
Ecker, G. & Kröll, W. 1963 Lowering of the ionization energy for a plasma in thermodynamic equilibrium. Phys. Fluids 6 (1), 62–69.Google Scholar
Fisher, D. V., Henis, Z., Eliezer, S. & Meyer-ter-Vehn, J. 2006 Core holes, charge disorder, and transition from metallic to plasma properties in ultrashort pulse irradiation of metals. Laser Part. Beams 24, 81–94.Google Scholar
Fletcher, L. B., Kritcher, A., Pak, A., Ma, T., Döppner, T., Fortmann, C., Divol, L., Landen, O. L., Vorberger, J., Chapman, D. A., Gericke, D. O., Falcone, R. W. & Glenzer, S. H. 2013 X-ray Thomson scattering measurements of temperature and density from multi-shocked CH capsules. Phys. Plasmas 20 (5), 056316.Google Scholar
Fletcher, L. B., Kritcher, A. L., Pak, A., Ma, T., Döppner, T., Fortmann, C., Divol, L., Jones, O. S., Landen, O. L., Scott, H. A., Vorberger, J., Chapman, D. A., Gericke, D. O., Mattern, B. A., Seidler, G. T., Gregori, G., Falcone, R. W. & Glenzer, S. H. 2014 Observations of continuum depression in warm dense matter with x-ray Thomson scattering. Phys. Rev. Lett. 112, 145004.Google Scholar
Hoarty, D. J., Allan, P., James, S. F., Brown, C. R. D., Hobbs, L. M. R., Hill, M. P., Harris, J. W. O., Morton, J., Brookes, M. G., Shepherd, R., Dunn, J., Chen, H., Von Marley, E., Beiersdorfer, P., Chung, H. K., Lee, R. W., Brown, G. & Emig, J. 2013a The first data from the Orion laser; measurements of the spectrum of hot, dense aluminium. High Energ. Dens. Phys. 9 (4), 661–671.Google Scholar
Hoarty, D. J., Allan, P., James, S. F., Brown, C. R. D., Hobbs, L. M. R., Hill, M. P., Harris, J. W. O., Morton, J., Brookes, M. G., Shepherd, R., Dunn, J., Chen, H., Von Marley, E., Beiersdorfer, P., Chung, H. K., Lee, R. W., Brown, G. & Emig, J. 2013b Observations of the effect of ionization-potential depression in hot dense plasma. Phys. Rev. Lett. 110 (26), 265003.Google Scholar
Hoener, M., Fang, L., Kornilov, O., Gessner, O., Pratt, S., Gühr, M., Kanter, E., Blaga, C., Bostedt, C., Bozek, J., Bucksbaum, P., Buth, C., Chen, M., Coffee, R., Cryan, J., DiMauro, L., Glownia, M., Hosler, E., Kukk, E., Leone, S., McFarland, B., Messerschmidt, M., Murphy, B., Petrovic, V., Rolles, D. & Berrah, N. 2010 Ultraintense x-ray induced ionization, dissociation, and frustrated absorption in molecular nitrogen. Phys. Rev. Lett. 104, 253002.Google Scholar
Iglesias, C. A. 2014 A plea for a reexamination of ionization potential depression measurements. High Energ. Dens. Phys. 12, 5–11.Google Scholar
Iglesias, C. A. & Sterne, P. A. 2013 Fluctuations and the ionization potential in dense plasmas. High Energ. Dens. Phys. 9 (1), 103–107.Google Scholar
Inubushi, Y., Yoneda, H., Higashiya, A., Ishikawa, T., Kimura, H., Kumagai, T., Morimoto, S., Nagasono, M., Ohashi, H., Sato, F., Tanaka, T., Togashi, T., Tono, K., Yabashi, M., Yamaguchi, Y. & Kodama, R. 2010 Measurement of saturable absorption by intense vacuum ultraviolet free electron laser using fluorescent material. Rev. Sci. Instrum. 81, 036101.Google Scholar
Lee, R. W., Baldis, H. A., Cauble, R. C., Landen, O. L., Wark, J. S., Ng, A., Rose, S. J., Lewis, C., Riley, D., Gauthier, J.-C. & Audebert, P. 2002 Plasma-based studies with intense X-ray and particle beam sources. Laser Part. Beams 20, 527–536.Google Scholar
Lee, R. W., Moon, S. J., Chung, H.-K., Rozmus, W., Baldis, H. a., Gregori, G., Cauble, R. C., Landen, O. L., Wark, J. S., Ng, A., Rose, S. J., Lewis, C. L., Riley, D., Gauthier, J.-C. & Audebert, P. 2003 Finite temperature dense matter studies on next-generation light sources. J. Opt. Soc. Am. B 20 (4), 770–778.Google Scholar
Lévy, A., Audebert, P., Shepherd, R., Dunn, J., Cammarata, M., Ciricosta, O., Deneuville, F., Dorchies, F., Fajardo, M., Fourment, C., Fritz, D., Fuchs, J., Gaudin, J., Gauthier, M., Graf, A., Lee, H. J., Lemke, H., Nagler, B., Park, J., Peyrusse, O., Steel, A. B., Vinko, S. M., Wark, J. S., Williams, G. O., Zhu, D. & Lee, R. W. 2015 The creation of large-volume, gradient-free warm dense matter with an x-ray free-electron laser. Phys. Plasmas 22 (3), 030703.Google Scholar
Medvedev, N., Zastrau, U., Förster, E., Gericke, D. & Rethfeld, B. 2011 Short-time electron dynamics in aluminum excited by femtosecond extreme ultraviolet radiation. Phys. Rev. Lett. 107 (16), 165003.Google Scholar
Mimura, H., Yumoto, H., Matsuyama, S., Koyama, T., Tono, K., Inubushi, Y., Togashi, T., Sato, T., Kim, J., Fukui, R., Sano, Y., Yabashi, M., Ohashi, H., Ishikawa, T. & Yamauchi, K. 2014 Generation of $10^{20}~\text{W cm}^{-2}$ hard X-ray laser pulses with two-stage reflective focusing system. Nat. Commun. 5, 3539.Google Scholar
Murillo, M. S., Weisheit, J., Hansen, S. B. & Dharma-wardana, M. W. C. 2013 Partial ionization in dense plasmas: comparisons among average-atom density functional models. Phys. Rev. E 87 (6), 063113.Google Scholar
Nagler, B., Zastrau, U., Fäustlin, R. R., Vinko, S. M., Whitcher, T., Nelson, A. J., Sobierajski, R., Krzywinski, J., Chalupsky, J., Abreu, E., Bajt, S., Bornath, T., Burian, T., Chapman, H., Cihelka, J., Döppner, T., Düsterer, S., Dzelzainis, T., Fajardo, M., Förster, E., Fortmann, C., Galtier, E., Glenzer, S. H., Göde, S., Gregori, G., Hajkova, V., Heimann, P., Juha, L., Jurek, M., Khattak, F. Y., Khorsand, A. R., Klinger, D., Kozlova, M., Laarmann, T., Lee, H. J., Lee, R. W., Meiwes-Broer, K.-H., Mercere, P., Murphy, W. J., Przystawik, A., Redmer, R., Reinholz, H., Riley, D., Röpke, G., Rosmej, F., Saksl, K., Schott, R., Thiele, R., Tiggesbäumker, J., Toleikis, S., Tschentscher, T., Uschmann, I., Vollmer, H. J. & Wark, J. S. 2009 Turning solid aluminium transparent by intense soft X-ray photoionization. Nat. Phys. 5 (9), 693–696.Google Scholar
Ng, A., Ao, T., Perrot, F., Dharma-wardana, M. W. C. & Foord, M. E. 2005 Idealized slab plasma approach for the study of warm dense matter. Laser Part. Beams 23, 527–537.Google Scholar
Preston, T. R, Vinko, S. M, Ciricosta, O., Chung, H.-K., Lee, R. W. & Wark, J. S. 2013 The effects of ionization potential depression on the spectra emitted by hot dense aluminium plasmas. High Energ. Dens. Phys. 9, 258–263.Google Scholar
Rackstraw, D. S., Ciricosta, O., Vinko, S. M., Barbrel, B., Burian, T., Chalupský, J., Cho, B. I., Chung, H.-K., Dakovski, G. L., Engelhorn, K., Hájková, V., Heimann, P., Holmes, M., Juha, L., Krzywinski, J., Lee, R. W., Toleikis, S., Turner, J. J., Zastrau, U. & Wark, J. S. 2015 Saturable absorption of an x-ray free-electron-laser heated solid-density aluminum plasma. Phys. Rev. Lett. 114, 015003.Google Scholar
Rose, S. J. 2009 The effect of a radiation field on excitation and ionisation in non-LTE high energy density plasmas. High Energ Dens. Phys. 5 (1–2), 23–26.Google Scholar
Son, S.-K., Thiele, R., Jurek, Z., Ziaja, B. & Santra, R. 2014 Quantum-mechanical calculation of ionization-potential lowering in dense plasmas. Phys. Rev. X 4, 031004.Google Scholar
Stewart, J. C. & Pyatt, K. D. Jr. 1966 Lowering of ionization potentials in plasmas. Astrophys. J. 144, 1203–1211.Google Scholar
Tschentscher, T. & Toleikis, S. 2005 Investigations of ultrafast phenomena in high-energy density physics using X-ray FEL radiation. Eur. Phys. J. D 36, 193–197.Google Scholar
Vinko, S. M., Ciricosta, O., Cho, B. I., Engelhorn, K., Chung, H.-K., Brown, C. R. D., Burian, T., Chalupský, J., Falcone, R. W., Graves, C., Hájková, V., Higginbotham, A., Juha, L., Krzywinski, J., Lee, H. J., Messerschmidt, M., Murphy, C. D., Ping, Y., Scherz, A., Schlotter, W., Toleikis, S., Turner, J. J., Vysin, L., Wang, T., Wu, B., Zastrau, U., Zhu, D., Lee, R. W., Heimann, P. A., Nagler, B. & Wark, J. S. 2012 Creation and diagnosis of a solid-density plasma with an X-ray free-electron laser. Nature 482 (7383), 59–62.Google Scholar
Vinko, S. M., Ciricosta, O., Preston, T. R., Rackstraw, D. S., Brown, C. R. D., Burian, T., Chalupský, J., Cho, B. I., Chung, H. K., Engelhorn, K., Falcone, R. W., Fiokovinini, R., Hájková, V., Heimann, P. A., Juha, L., Lee, H. J., Lee, R. W., Messerschmidt, M., Nagler, B., Schlotter, W., Turner, J. J., Vysin, L., Zastrau, U. & Wark, J. S. 2015 Investigation of femtosecond collisional ionization rates in a solid-density aluminium plasma. Nat. Commun. 6, 6397.Google Scholar
Vinko, S. M., Ciricosta, O. & Wark, J. S. 2014 Density functional theory calculations of continuum lowering in strongly coupled plasmas. Nat. Commun. 5, 3533.Google Scholar
Vinko, S. M., Zastrau, U., Mazevet, S., Andreasson, J., Bajt, S., Burian, T., Chalupsky, J., Chapman, H. N., Cihelka, J., Doria, D., Döppner, T., Düsterer, S., Dzelzainis, T., Fäustlin, R. R., Fortmann, C., Förster, E., Galtier, E., Glenzer, S. H., Göde, S., Gregori, G., Hajdu, J., Hajkova, V., Heimann, P. a., Irsig, R., Juha, L., Jurek, M., Krzywinski, J., Laarmann, T., Lee, H. J., Lee, R. W., Li, B., Meiwes-Broer, K.-H., Mithen, J. P., Nagler, B., Nelson, a. J., Przystawik, a., Redmer, R., Riley, D., Rosmej, F., Sobierajski, R., Tavella, F., Thiele, R., Tiggesbäumker, J., Toleikis, S., Tschentscher, T., Vysin, L., Whitcher, T. J., White, S. & Wark, J. S. 2010 Electronic structure of an XUV photogenerated solid-density aluminum plasma. Phys. Rev. Lett. 104, 225001.Google Scholar
White, T. G., Mabey, P., Gericke, D. O., Hartley, N. J., Doyle, H. W., McGonegle, D., Rackstraw, D. S., Higginbotham, A. & Gregori, G. 2014 Electron–phonon equilibration in laser-heated gold films. Phys. Rev. B 90, 014305.Google Scholar
Yoneda, H., Inubushi, Y., Sato, F., Morimoto, S., Kumagaya, T., Nagasono, M., Higashiya, A., Yabashi, M., Ishikawa, T., Ohashi, H., Kimura, H., Togashi, T. & Kodama, R. 2009 Observation of saturable absorption of Sn metal film with intense EUV laser pulse. In Proc. SPIE 7501, International Conference on Ultrafast and Nonlinear Optics 2009, 75010H.Google Scholar
Yoneda, H., Inubushi, Y., Yabashi, M., Katayama, T., Ishikawa, T., Ohashi, H., Yumoto, H., Yamauchi, K., Mimura, H. & Kitamura, H. 2014 Saturable absorption of intense hard X-rays in iron. Nat. Commun. 5, 5080.Google Scholar
Young, L., Kanter, E. P., Krässig, B., Li, Y., March, a. M., Pratt, S. T., Santra, R., Southworth, S. H., Rohringer, N., Dimauro, L. F., Doumy, G., Roedig, C. a., Berrah, N., Fang, L., Hoener, M., Bucksbaum, P. H., Cryan, J. P., Ghimire, S., Glownia, J. M., Reis, D. a., Bozek, J. D., Bostedt, C., Messerschmidt, M. & Messerschmidt, M. 2010 Femtosecond electronic response of atoms to ultra-intense X-rays. Nature 466 (7302), 56–61.Google Scholar
Zastrau, U., Sperling, P., Harmand, M., Becker, A., Bornath, T., Bredow, R., Dziarzhytski, S., Fennel, T., Fletcher, L. B., Förster, E., Göde, S., Gregori, G., Hilbert, V., Hochhaus, D., Holst, B., Laarmann, T., Lee, H. J., Ma, T., Mithen, J. P., Mitzner, R., Murphy, C. D., Nakatsutsumi, M., Neumayer, P., Przystawik, A., Roling, S., Schulz, M., Siemer, B., Skruszewicz, S., Tiggesbäumker, J., Toleikis, S., Tschentscher, T., White, T., Wöstmann, M., Zacharias, H., Döppner, T., Glenzer, S. H. & Redmer, R. 2014 Resolving ultrafast heating of dense cryogenic hydrogen. Phys. Rev. Lett. 112, 105002.Google Scholar
Zimmerman, G. B. & More, R. M. 1980 Pressure ionization in laser-fusion target simulation. J. Quant. Spectrosc. Radiat. Transfer 23, 517–522.Google Scholar