Zobrazeno 1 - 10
of 734
pro vyhledávání: '"Bozek J."'
Autor:
Dupuy, R., Filser, J., Richter, C., Buttersack, T., Trinter, F., Gholami, S., Seidel, R., Nicolas, C., Bozek, J., Egger, D., Oberhofer, H., Thürmer, S., Hergenhahn, U., Reuter, K., Winter, B., Bluhm, H.
Publikováno v:
Phys. Rev. Lett. 130 (15) 156901 (2023)
The determination of depth profiles across interfaces is of primary importance in many scientific and technological areas. Photoemission spectroscopy is in principle well suited for this purpose, yet a quantitative implementation for investigations o
Externí odkaz:
http://arxiv.org/abs/2209.15437
Autor:
Barillot, T., Alexander, O., Cooper, B., Driver, T., Garratt, D., Li, S., Haddad, A. Al, Sanchez-Gonzalez, A., Agåker, M., Arrell, C., Bearpark, M., Berrah, N., Bostedt, C., Bozek, J., Brahms, C., Bucksbaum, P. H., Clark, A., Doumy, G., Feifel, R., Frasinski, L. J., Jarosch, S., Johnson, A. S., Kjellsson, L., Kolorenč, P., Kumagai, Y., Larsen, E. W., Matia-Hernando, P., Robb, M., Rubensson, J. -E., Ruberti, M., Sathe, C., Squibb, R. J., Tan, A., Tisch, J. W. G., Vacher, M., Walke, D. J., Wolf, T. J. A., Wood, D., Zhaunerchyk, V., Walter, P., Osipov, T., Marinelli, A., Maxwell, T., Coffee, R., Lutman, A. A., Averbukh, V., Ueda, K., Cryan, J. P., Marangos, J. P.
Publikováno v:
Phys. Rev. X 11, 031048 (2021)
The possibility of suddenly ionized molecules undergoing extremely fast electron hole dynamics prior to significant structural change was first recognized more than 20 years ago and termed charge migration. The accurate probing of ultrafast electron
Externí odkaz:
http://arxiv.org/abs/2105.06507
Autor:
Haynes, D. C., Wurzer, M., Schletter, A., Al-Haddad, A., Blaga, C., Bostedt, C., Bozek, J., Bucher, M., Camper, A., Carron, S., Coffee, R., Costello, J. T., DiMauro, L. F., Ding, Y., Ferguson, K., Grguraš, I., Helml, W., Hoffmann, M. C., Ilchen, M., Jalas, S., Kabachnik, N. M., Kazansky, A. K., Kienberger, R., Maier, A. R., Maxwell, T., Mazza, T., Meyer, M., Park, H., Robinson, J. S., Roedig, C., Schlarb, H., Singla, R., Tellkamp, F., Zhang, K., Doumy, G., Behrens, C., Cavalieri, A. L.
Intense X-ray free-electron lasers (XFELs) can rapidly excite matter, leaving it in inherently unstable states that decay on femtosecond timescales. As the relaxation occurs primarily via Auger emission, excited state observations are constrained by
Externí odkaz:
http://arxiv.org/abs/2003.10398
Autor:
Osipov T., Miyabe S., Natan A., Murphy B., Mucke M., Martinez T., Glownia J., Gaffney K., Feifel R., Fang L., Cryan J., Coffee R., Bucksbaum P.H., Bozek J., Bostedt C., Berrah N., Farrell J. P., McFarland B. K., Petrovic V., Schorb S., Schultz Th., Spector L., Tarantelli F., Tenney I., Wang S., White W., White J., Gühr M.
Publikováno v:
EPJ Web of Conferences, Vol 41, p 07004 (2013)
Nucleobases absorb strongly in the ultraviolet region, leading to molecular excitation into reactive states. The molecules avoid the photoreactions by funnelling the electronic energy into less reactive states on an ultrafast timescale via non-Born-O
Externí odkaz:
https://doaj.org/article/548d3a89f70648a6b2e5c6f41abd7309
Autor:
Mueller, A, Schippers, S, Phaneuf, R A, Covington, A M, Aguilar, A, Hinojosa, G, Bozek, J, Sant'Anna, M M, Schlachter, A S, Cisneros, C, McLaughlin, B M
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 50 (2017) 205001
Relative cross sections for the valence shell photoionisation (PI) of $\rm ^2S$ ground level and $\rm ^2D$ metastable Ca$^{+}$ ions were measured with high energy resolution by using the ion-photon merged-beams technique at the Advanced Light Source.
Externí odkaz:
http://arxiv.org/abs/1710.06475
Autor:
Hoffmann, M. C., Grguraš, I., Behrens, C., Bostedt, C., Bozek, J., Bromberger, H., Coffee, R., Costello, J. T., DiMauro, L. F., Ding, Y., Doumy, G., Helml, W., Ilchen, M., Kienberger, R., Lee, S., Maier, A. R., Mazza, T., Meyer, M., Messerschmidt, M., Schorb, S., Schweinberger, W., Zhang, K., Cavalieri, A. L.
Arbitrary manipulation of the temporal and spectral properties of X-ray pulses at free-electron lasers (FELs) would revolutionize many experimental applications. At the Linac Coherent Light Source at Stanford National Accelerator Laboratory, the mome
Externí odkaz:
http://arxiv.org/abs/1705.01938
Autor:
Boll, R., Rouzee, A., Adolph, M., Anielski, D., Aquila, A., Bari, S., Bomme, C., Bostedt, C., Bozek, J. D., Chapman, H. N., Christensen, L., Coffee, R., Coppola, N., De, S., Decleva, P., Epp, S. W., Erk, B., Filsinger, F., Foucar, L., Gorkhover, T., Gumprecht, L., Hoemke, A., Holmegaard, L., Johnsson, P., Kienitz, J. S., Kierspel, T., Krasniqi, F., Kuehnel, K. -U., Maurer, J., Messerschmidt, M., Moshammer, R., Mueller, Nele L. M., Rudek, B., Savelyev, E., Schlichting, I., Schmidt, C., Scholz, F., Schorb, S., Schulz, J., Seltmann, J., Stener, M., Stern, S., Techert, S., Thogersen, J, Trippel, S., Viefhaus, J., Vrakking, M, Stapelfeldt, H., Kuepper, J., Ullrich, J., Rudenko, A., Rolles, D.
This paper gives an account of our progress towards performing femtosecond time-resolved photoelectron diffraction on gas-phase molecules in a pump-probe setup combining optical lasers and an X-ray Free-Electron Laser. We present results of two exper
Externí odkaz:
http://arxiv.org/abs/1407.7782
Autor:
Fang, L., Hoener, M., Gessner, O., Tarantelli, F., Pratt, S. T., Kornilov, O., Buth, C., Güehr, M., Kanter, E. P., Bostedt, C., Bozek, J. D., Bucksbaum, P. H., Chen, M., Coffee, R., Cryan, J., Glownia, M., Kukk, E., Leone, S. R., Berrah, N.
Publikováno v:
PRL 105, 083005 (2010)
We investigate the creation of double K-shell holes in N2 molecules via sequential absorption of two photons on a timescale shorter than the core-hole lifetime by using intense x-ray pulses from the Linac Coherent Light Source free electron laser. Th
Externí odkaz:
http://arxiv.org/abs/1303.1429
Autor:
McFarland, B. K., Farrell, J. P., Miyabe, S., Tarantelli, F., Aguilar, A., Berrah, N., Bostedt, C., Bozek, J., Bucksbaum, P. H., Castagna, J. C., Coffee, R., Cryan, J., Fang, L., Feifel, R., Gaffney, K., Glownia, J., Martinez, T., Mucke, M., Murphy, B., Natan, A., Osipov, T., Petrovic, V ., Schorb, S., Schultz, Th., Spector, L., Swiggers, M., Tenney, I., Wang, S., White, W., White, J., Gühr, M.
We present a new method for ultrafast spectroscopy of molecular photoexcited dynamics. The technique uses a pair of femtosecond pulses: a photoexcitation pulse initiating excited state dynamics followed by a soft x-ray (SXR) probe pulse that core ion
Externí odkaz:
http://arxiv.org/abs/1301.3104
Autor:
Salen, P., van der Meulen, P., Schmidt, H. T., Thomas, R. D., Larsson, M., Feifel, R., Piancastelli, M. N., Fang, L., Murphy, B., Osipov, T., Berrah, N., Kukk, E., Ueda, K., Bozek, J. D., Bostedt, C., Wada, S., Richter, R., Feyer, V., Prince, K. C.
Publikováno v:
Phys. Rev. Lett. 108, 153003 (2012)
We have performed X-ray two-photon photoelectron spectroscopy (XTPPS) using the Linac Coherent Light Source (LCLS) X-ray free-electron laser (FEL) in order to study double core-hole (DCH) states of CO2, N2O and N2. The experiment verifies the theory
Externí odkaz:
http://arxiv.org/abs/1205.0423