Search Results - "Santra, R."

Observation of the fastest chemical processes in the radiolysis of water by Loh, Z-H, Doumy, G, Arnold, C, Kjellsson, L, Southworth, S H, Al Haddad, A, Kumagai, Y, Tu, M-F, Ho, P J, March, A M, Schaller, R D, Bin Mohd Yusof, M S, Debnath, T, Simon, M, Welsch, R, Inhester, L, Khalili, K, Nanda, K, Krylov, A I, Moeller, S, Coslovich, G, Koralek, J, Minitti, M P, Schlotter, W F, Rubensson, J-E, Santra, R, Young, L

“…Elementary processes associated with ionization of liquid water provide a framework for understanding radiation-matter interactions in chemistry and biology…”
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Synthesized Light Transients by Wirth, A., Hassan, M. Th, Grguraš, I., Gagnon, J., Moulet, A., Luu, T. T., Pabst, S., Santra, R., Alahmed, Z. A., Azzeer, A. M., Yakovlev, V. S., Pervak, V., Krausz, F., Goulielmakis, E.

“…Manipulation of electron dynamics calls for electromagnetic forces that can be confined to and controlled over sub-femtosecond time intervals. Tailored…”
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Femtosecond response of polyatomic molecules to ultra-intense hard X-rays by Rudenko, A., Inhester, L., Hanasaki, K., Li, X., Robatjazi, S. J., Erk, B., Boll, R., Toyota, K., Hao, Y., Vendrell, O., Bomme, C., Savelyev, E., Rudek, B., Foucar, L., Southworth, S. H., Lehmann, C. S., Kraessig, B., Marchenko, T., Simon, M., Ueda, K., Ferguson, K. R., Bucher, M., Gorkhover, T., Carron, S., Alonso-Mori, R., Koglin, J. E., Correa, J., Williams, G. J., Boutet, S., Young, L., Bostedt, C., Son, S.-K., Santra, R., Rolles, D.

“…Upon exposure to ultra-intense, hard X-ray pulses, polyatomic molecules containing one heavy atom reach a much higher degree of ionization than do individual…”
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The Radio Halo in PLCKESZ G171.94–40.65: Beacon of Merging Activity by Santra, R., Kale, R., Giacintucci, S., Wik, D. R., Venturi, T., Dallacasa, D., Cassano, R., Brunetti, G., Joshi, D. C.

“…Abstract We present the first multifrequency analysis of the candidate ultrasteep spectrum radio halo in the galaxy cluster PLCKESZ G171.94−40.65, using the…”
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Few-fs resolution of a photoactive protein traversing a conical intersection by Hosseinizadeh, A., Breckwoldt, N., Fung, R., Sepehr, R., Schmidt, M., Schwander, P., Santra, R., Ourmazd, A.

“…The structural dynamics of a molecule are determined by the underlying potential energy landscape. Conical intersections are funnels connecting otherwise…”
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A Deep uGMRT View of the Ultra-steep Spectrum Radio Halo in A521 by Santra, R., Kale, R., Giacintucci, S., Markevitch, M., De Luca, F., Bourdin, H., Venturi, T., Dallacasa, D., Cassano, R., Brunetti, G., Buch, K. D.

“…Abstract We present the first detailed analysis of the ultra-steep spectrum radio halo in the merging galaxy cluster A521, based on upgraded Giant Metrewave…”
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Nonlinear atomic response to intense ultrashort x rays by Doumy, G, Roedig, C, Son, S-K, Blaga, C I, DiChiara, A D, Santra, R, Berrah, N, Bostedt, C, Bozek, J D, Bucksbaum, P H, Cryan, J P, Fang, L, Ghimire, S, Glownia, J M, Hoener, M, Kanter, E P, Krässig, B, Kuebel, M, Messerschmidt, M, Paulus, G G, Reis, D A, Rohringer, N, Young, L, Agostini, P, DiMauro, L F

“…The nonlinear absorption mechanisms of neon atoms to intense, femtosecond kilovolt x rays are investigated. The production of Ne(9+) is observed at x-ray…”
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Incoherent x-ray scattering in single molecule imaging by Slowik, J M, Son, S-K, Dixit, G, Jurek, Z, Santra, R

“…Imaging of the structure of single proteins or other biomolecules with atomic resolution would be enormously beneficial to structural biology. X-ray…”
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Femtosecond X-ray-induced explosion of C60 at extreme intensity by Murphy, B. F., Osipov, T., Jurek, Z., Fang, L., Son, S.-K., Mucke, M., Eland, J.H.D., Zhaunerchyk, V., Feifel, R., Avaldi, L., Bolognesi, P., Bostedt, C., Bozek, J. D., Grilj, J., Guehr, M., Frasinski, L. J., Glownia, J., Ha, D. T., Hoffmann, K., Kukk, E., McFarland, B. K., Miron, C., Sistrunk, E., Squibb, R. J., Ueda, K., Santra, R., Berrah, N.

“…Understanding molecular femtosecond dynamics under intense X-ray exposure is critical to progress in biomolecular imaging and matter under extreme conditions…”
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Dynamics from noisy data with extreme timing uncertainty by Fung, R., Hanna, A. M., Vendrell, O., Ramakrishna, S., Seideman, T., Santra, R., Ourmazd, A.

“…A data-analytical approach that can extract the history and dynamics of complex systems from noisy snapshots on timescales much shorter than the uncertainty…”
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Femtosecond electronic response of atoms to ultra-intense X-rays by 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

“…An era of exploring the interactions of high-intensity, hard X-rays with matter has begun with the start-up of a hard-X-ray free-electron laser, the Linac…”
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The linac coherent light source single particle imaging road map by Aquila, A, Barty, A, Bostedt, C, Boutet, S, Carini, G, dePonte, D, Drell, P, Doniach, S, Downing, K H, Earnest, T, Elmlund, H, Elser, V, Gühr, M, Hajdu, J, Hastings, J, Hau-Riege, S P, Huang, Z, Lattman, E E, Maia, F R N C, Marchesini, S, Ourmazd, A, Pellegrini, C, Santra, R, Schlichting, I, Schroer, C, Spence, J C H, Vartanyants, I A, Wakatsuki, S, Weis, W I, Williams, G J

“…Intense femtosecond x-ray pulses from free-electron laser sources allow the imaging of individual particles in a single shot. Early experiments at the Linac…”
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Sensitivity of nonlinear photoionization to resonance substructure in collective excitation by Mazza, T., Karamatskou, A., Ilchen, M., Bakhtiarzadeh, S., Rafipoor, A. J., O’Keeffe, P., Kelly, T. J., Walsh, N., Costello, J. T., Meyer, M., Santra, R.

“…Collective behaviour is a characteristic feature in many-body systems, important for developments in fields such as magnetism, superconductivity, photonics and…”
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Deep inner-shell multiphoton ionization by intense x-ray free-electron laser pulses by Fukuzawa, H, Son, S-K, Motomura, K, Mondal, S, Nagaya, K, Wada, S, Liu, X-J, Feifel, R, Tachibana, T, Ito, Y, Kimura, M, Sakai, T, Matsunami, K, Hayashita, H, Kajikawa, J, Johnsson, P, Siano, M, Kukk, E, Rudek, B, Erk, B, Foucar, L, Robert, E, Miron, C, Tono, K, Inubushi, Y, Hatsui, T, Yabashi, M, Yao, M, Santra, R, Ueda, K

“…We have investigated multiphoton multiple ionization dynamics of xenon atoms using a new x-ray free-electron laser facility, SPring-8 Angstrom Compact free…”
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Unveiling and driving hidden resonances with high-fluence, high-intensity x-ray pulses by Kanter, E P, Krässig, B, Li, Y, March, A M, Ho, P, Rohringer, N, Santra, R, Southworth, S H, DiMauro, L F, Doumy, G, Roedig, C A, Berrah, N, Fang, L, Hoener, M, Bucksbaum, P H, Ghimire, S, Reis, D A, Bozek, J D, Bostedt, C, Messerschmidt, M, Young, L

“…We show that high fluence, high-intensity x-ray pulses from the world's first hard x-ray free-electron laser produce nonlinear phenomena that differ…”
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Resonant Inelastic X-Ray Scattering Reveals Hidden Local Transitions of the Aqueous OH Radical by Kjellsson, L., Nanda, K. D., Rubensson, J.-E., Doumy, G., Southworth, S. H., Ho, P. J., March, A. M., Al Haddad, A., Kumagai, Y., Tu, M.-F., Schaller, R. D., Debnath, T., Bin Mohd Yusof, M. S., Arnold, C., Schlotter, W. F., Moeller, S., Coslovich, G., Koralek, J. D., Minitti, M. P., Vidal, M. L., Simon, M., Santra, R., Loh, Z.-H., Coriani, S., Krylov, A. I., Young, L.

“…Resonant inelastic x-ray scattering (RIXS) provides remarkable opportunities to interrogate ultrafast dynamics in liquids. Here we use RIXS to study the…”
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Femtosecond-resolved observation of the fragmentation of buckminsterfullerene following X-ray multiphoton ionization by Berrah, N., Sanchez-Gonzalez, A., Jurek, Z., Obaid, R., Xiong, H., Squibb, R. J., Osipov, T., Lutman, A., Fang, L., Barillot, T., Bozek, J. D., Cryan, J., Wolf, T. J. A., Rolles, D., Coffee, R., Schnorr, K., Augustin, S., Fukuzawa, H., Motomura, K., Niebuhr, N., Frasinski, L. J., Feifel, R., Schulz, C. P., Toyota, K., Son, S.-K., Ueda, K., Pfeifer, T., Marangos, J. P., Santra, R.

“…X-ray free-electron lasers have, over the past decade, opened up the possibility of understanding the ultrafast response of matter to intense X-ray pulses. In…”
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Limitations of coherent diffractive imaging of single objects due to their damage by intense x-ray radiation by Ziaja, B, Chapman, H N, Fäustlin, R, Hau-Riege, S, Jurek, Z, Martin, A V, Toleikis, S, Wang, F, Weckert, E, Santra, R

“…During the coherent diffraction imaging (CDI) of a single object with an intense x-ray free-electron laser (FEL) pulse, the structure of the object changes due…”
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Inner-Shell-Ionization-Induced Femtosecond Structural Dynamics of Water Molecules Imaged at an X-Ray Free-Electron Laser by Jahnke, T., Guillemin, R., Inhester, L., Son, S.-K., Kastirke, G., Ilchen, M., Rist, J., Trabert, D., Melzer, N., Anders, N., Mazza, T., Boll, R., De Fanis, A., Music, V., Weber, Th, Weller, M., Eckart, S., Fehre, K., Grundmann, S., Hartung, A., Hofmann, M., Janke, C., Kircher, M., Nalin, G., Pier, A., Siebert, J., Strenger, N., Vela-Perez, I., Baumann, T. M., Grychtol, P., Montano, J., Ovcharenko, Y., Rennhack, N., Rivas, D. E., Wagner, R., Ziolkowski, P., Schmidt, P., Marchenko, T., Travnikova, O., Journel, L., Ismail, I., Kukk, E., Niskanen, J., Trinter, F., Vozzi, C., Devetta, M., Stagira, S., Gisselbrecht, M., Jäger, A. L., Li, X., Malakar, Y., Martins, M., Feifel, R., Schmidt, L. Ph. H., Czasch, A., Sansone, G., Rolles, D., Rudenko, A., Moshammer, R., Dörner, R., Meyer, M., Pfeifer, T., Schöffler, M. S., Santra, R., Simon, M., Piancastelli, M. N.

“…The ultrafast structural dynamics of water following inner-shell ionization is a crucial issue in high-energy radiation chemistry. We have exposed isolated…”
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Pulse Energy and Pulse Duration Effects in the Ionization and Fragmentation of Iodomethane by Ultraintense Hard X Rays by Li, X., Inhester, L., Robatjazi, S. J., Erk, B., Boll, R., Hanasaki, K., Toyota, K., Hao, Y., Bomme, C., Rudek, B., Foucar, L., Southworth, S. H., Lehmann, C. S., Kraessig, B., Marchenko, T., Simon, M., Ueda, K., Ferguson, K. R., Bucher, M., Gorkhover, T., Carron, S., Alonso-Mori, R., Koglin, J. E., Correa, J., Williams, G. J., Boutet, S., Young, L., Bostedt, C., Son, S.-K., Santra, R., Rolles, D., Rudenko, A.

“…The interaction of intense femtosecond x-ray pulses with molecules sensitively depends on the interplay between multiple photoabsorptions, Auger decay, charge…”
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