Zobrazeno 1 - 10
of 545
pro vyhledávání: '"Cryan J"'
We obtain continuum molecular wavefunctions for open-shell molecules in the Hartree-Fock framework. We do so while accounting for the singlet or triplet total spin symmetry of the molecular ion, that is, of the open-shell orbital and the initial orbi
Externí odkaz:
http://arxiv.org/abs/2302.07095
Autor:
Cesar, D., Acharya, A., Cryan, J. P., Kartsev, A., Kling, M. F., Lindenberg, A. M., Pemmaraju, C. D., Poletayev, A. D., Yakovlev, V. S., Marinelli, A.
In this article, we illustrate how the Coulomb field of a highly relativistic electron beam can be shaped into a broadband pulse suitable for driving ultrafast and strong-field physics. In contrast to a solid-state laser, the Coulomb field creates a
Externí odkaz:
http://arxiv.org/abs/2207.13215
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:
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:
Wolf, T. J. A., Sanchez, D. M., Yang, J., Parrish, R. M., Nunes, J. P. F., Centurion, M., Coffee, R., Cryan, J. P., Gühr, M., Hegazy, K., Kirrander, A., Li, R. K., Ruddock, J., Shen, X., Veccione, T., Weathersby, S. P., Weber, P. M., Wilkin, K., Yong, H., Zheng, Q., Wang, X. J., Minitti, M. P., Martínez, T. J.
The ultrafast photoinduced ring-opening of 1,3-cyclohexadiene constitutes a textbook example of electrocyclic reactions in organic chemistry and a model for photobiological reactions in vitamin D synthesis. Here, we present direct and unambiguous obs
Externí odkaz:
http://arxiv.org/abs/1810.02900
Autor:
Ross, F. C., Mayer, D. E., Horn, J., Cryan, J. F., Del Rio, D., Randolph, E., Gill, C. I. R., Gupta, A., Ross, R. P., Stanton, C., Mayer, E. A.
Publikováno v:
Nutritional Neuroscience; Sep2024, Vol. 27 Issue 9, p1058-1076, 19p
Autor:
Wolf, T. J. A., Myhre, R. H., Cryan, J. P., Coriani, S., Squibb, R. J., Battistoni, A., Berrah, N., Bostedt, C., Bucksbaum, P., Coslovich, G., Feifel, R., Gaffney, K. J., Grilj, J., Martinez, T. J., Miyabe, S., Moeller, S. P., Mucke, M., Natan, A., Obaid, R., Osipov, T., Plekan, O., Wang, S., Koch, H., Gühr, M.
Organic chromophores with heteroatoms possess an important excited state relaxation channel from an optically allowed {\pi}{\pi}* to a dark n{\pi}*state. We exploit the element and site specificity of soft x-ray absorption spectroscopy to selectively
Externí odkaz:
http://arxiv.org/abs/1610.08498
Autor:
Sanchez-Gonzalez, A., Micaelli, P., Olivier, C., Barillot, T. R., Ilchen, M., Lutman, A. A., Marinelli, A., Maxwell, T., Achner, A., Agåker, M., Berrah, N., Bostedt, C., Buck, J., Bucksbaum, P. H., Montero, S. Carron, Cooper, B., Cryan, J. P., Dong, M., Feifel, R., Frasinski, L. J., Fukuzawa, H., Galler, A., Hartmann, G., Hartmann, N., Helml, W., Johnson, A. S., Knie, A., Lindahl, A. O., Liu, J., Motomura, K., Mucke, M., O'Grady, C., Rubensson, J-E., Simpson, E. R., Squibb, R. J., Såthe, C., Ueda, K., Vacher, M., Walke, D. J., Zhaunerchyk, V., Coffee, R. N., Marangos, J. P.
Publikováno v:
Nature Communications 8, 15461 (2017)
X-ray free-electron lasers (XFELs) are the only sources currently able to produce bright few-fs pulses with tunable photon energies from 100 eV to more than 10 keV. Due to the stochastic SASE operating principles and other technical issues the output
Externí odkaz:
http://arxiv.org/abs/1610.03378
Autor:
Glownia, J. M., Natan, A., Cryan, J. P., Hartsock, R., Kozina, M., Minitti, M. P., Nelson, S., Robinson, J., Sato, T., van Driel, T., Welch, G., Weninger, C., Zhi, D., Bucksbaum, P. H.
Publikováno v:
Phys. Rev. Lett. 117, 153003 (2016)
Time-resolved femtosecond x-ray diffraction patterns from laser-excited molecular iodine are used to create a movie of intramolecular motion with time and space resolution of $30~$fs and $0.3$ \AA . The high spatial fidelity is due to interference be
Externí odkaz:
http://arxiv.org/abs/1608.03039
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