Zobrazeno 1 - 10
of 14
pro vyhledávání: '"S P Weathersby"'
Autor:
K Sokolowski-Tinten, R K Li, A H Reid, S P Weathersby, F Quirin, T Chase, R Coffee, J Corbett, A Fry, N Hartmann, C Hast, R Hettel, M Horn von Hoegen, D Janoschka, J R Lewandowski, M Ligges, F Meyer zu Heringdorf, X Shen, T Vecchione, C Witt, J Wu, H A Dürr, X J Wang
Publikováno v:
New Journal of Physics, Vol 17, Iss 11, p 113047 (2015)
Electron–phonon coupling processes determine electronic transport properties of materials and are responsible for the transfer of electronic excess energy to the lattice. With decreasing device dimensions an understanding of these processes in nano
Externí odkaz:
https://doaj.org/article/0b110471d09448478ef653fdf40ff992
Autor:
X. Shen, J. P. F. Nunes, J. Yang, R. K. Jobe, R. K. Li, Ming-Fu Lin, B. Moore, M. Niebuhr, S. P. Weathersby, T. J. A. Wolf, C. Yoneda, Markus Guehr, Martin Centurion, X. J. Wang
Publikováno v:
Structural Dynamics, Vol 6, Iss 5, Pp 054305-054305-9 (2019)
The development of ultrafast gas electron diffraction with nonrelativistic electrons has enabled the determination of molecular structures with atomic spatial resolution. It has, however, been challenging to break the picosecond temporal resolution b
Externí odkaz:
https://doaj.org/article/e721e152a48b4e19a3075107ca6bcd06
Autor:
K. Sokolowski-Tinten, X. Shen, Q. Zheng, T. Chase, R. Coffee, M. Jerman, R. K. Li, M. Ligges, I. Makasyuk, M. Mo, A. H. Reid, B. Rethfeld, T. Vecchione, S. P. Weathersby, H. A. Dürr, X. J. Wang
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 054501-054501-8 (2017)
We apply time-resolved MeV electron diffraction to study the electron-lattice energy relaxation in thin film Au-insulator heterostructures. Through precise measurements of the transient Debye-Waller-factor, the mean-square atomic displacement is dire
Externí odkaz:
https://doaj.org/article/3c832d2e2b7f4b689b53b62132575bdc
Autor:
R. K. Li, M. C. Hoffmann, E. A. Nanni, S. H. Glenzer, M. E. Kozina, A. M. Lindenberg, B. K. Ofori-Okai, A. H. Reid, X. Shen, S. P. Weathersby, J. Yang, M. Zajac, X. J. Wang
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 1, p 012803 (2019)
We demonstrate single-shot temporal characterization of relativistic electron bunches using single-cycle terahertz (THz) field streaking. A transverse deflecting structure consisting of a metal slit enables efficient coupling of the THz field and ele
Externí odkaz:
https://doaj.org/article/5042d17613a44a14b3474fbbdcf70199
Autor:
Markus Gühr, Xijie Wang, Qiang Zheng, Peter M. Weber, Jie Yang, Xiaozhe Shen, S. P. Weathersby, Theodore Veccione, R. Coffee, Jennifer M. Ruddock, D. M. Sanchez, Michael P. Minitti, Adam Kirrander, Haiwang Yong, Kareem Hegazy, Martin Centurion, Renkai Li, Thomas J. A. Wolf, Robert M. Parrish, James P. Cryan, Todd J. Martínez, J. P. F. Nunes, Kyle J. Wilkin
Publikováno v:
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, Vecchione, T, Weathersby, S P, Weber, P M, Wilkin, K, Yong, H, Zheng, Q, Wang, X J, Minitti, M P & Martínez, T J 2019, ' The photochemical ring-opening of 1,3-cyclohexadiene imaged by ultrafast electron diffraction ', Nature Chemistry, vol. 11, pp. 504–509 . https://doi.org/10.1038/s41557-019-0252-7
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. Although the relaxation from the photoexcit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78d350ea6dd87156c925464ccafd5bd0
https://doi.org/10.1038/s41557-019-0252-7
https://doi.org/10.1038/s41557-019-0252-7
Autor:
Alexander H. Reid, Wayne Polzin, Matthias C. Hoffmann, S. Edstrom, Suji Park, S. H. Glenzer, Qiang Zheng, Xijie Wang, Benjamin K. Ofori-Okai, S. P. Weathersby, Xiaozhe Shen, Jie Yang, Mannebach Ehren, Renkai Li, R.K. Jobe, Aaron M. Lindenberg, M. Zajac
Publikováno v:
Journal of Instrumentation. 13:P06014-P06014
We describe a new experimental setup capable of measuring structural dynamics following intense terahertz excitation. This system, developed at the SLAC Accelerator Structure Test Area facility, uses a high-energy ultrafast laser to produce intense t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f766ccac52666d53c2bd0b76ddc3367f
https://doi.org/10.1088/1748-0221/13/06/p06014
https://doi.org/10.1088/1748-0221/13/06/p06014
Development of MeV Ultrafast Electron Scattering Instruments at SLAC National Accelerator Laboratory
Autor:
Klaus Sokolowski-Tinten, J. E. May, Theodore Vecchione, Xiaozhe Shen, Nick Hartmann, Xijie Wang, C. Hast, Renkai Li, Jie Yang, Martin Centurion, Aaron M. Lindenberg, T. Chase, S. P. Weathersby, L. V. Ho, H. A. Diirr, Erik Jongewaard, Markus Guehr, Garth Brown, Alexander H. Reid, Ryan Coffee, Juhao Wu, Josef Frisch, D. McCormick, James Lewandowski, Keith Jobe, Jeff Corbett
Publikováno v:
Microscopy and Microanalysis. 21:1209-1210
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aea5303168853e37bf0156de5beb9e7
https://doi.org/10.1017/s1431927615006832
https://doi.org/10.1017/s1431927615006832
Autor:
C. Boekema, D. W. Cooke, T. J. Hoffman, C. H. Halim, R. L. Lichti, J. E. Crow, W. K. Dawson, J. A. Flint, M. S. Jahan, S. P. Weathersby, J. C. Lam, Kc. B. Chan
Publikováno v:
Hyperfine Interactions. 63:219-226
Key results of zero-field (ZF) and transverse-field (TF) muon-spin-relaxation (μSR) experiments on superconducting and insulating RBa2Cu3O y (R123 y , with R=Eu, Gd, Pr and Pr/Y:y=6, 7) are examined. The chemical behavior of the positive muon probe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::073cc7e1e343f37cb56edb2d8b8da50b
https://doi.org/10.1007/bf02396006
https://doi.org/10.1007/bf02396006
Autor:
K. C. B. Chan, C. Boekema, R. L. Hutson, M. E. Schillaci, R. L. Lichti, J. O. Willis, J. L. Smith, H. Rempp, J. Oostens, M. A. Maez, R.S. Kwok, S. P. Weathersby, D. W. Cooke
Publikováno v:
Physical Review B. 39:2748-2751
Muon-spin-rotation measurements have been used to determine the magnetic field penetration depth lambda as a function of temperature T in superconducting, sintered EuBa/sub 2/Cu/sub 3/O/sub x/(xapprox. =7). The extrapolated value at 0 K, lambda(0), i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad594dacbb325537e33d6e7a8849608e
https://doi.org/10.1103/physrevb.39.2748
https://doi.org/10.1103/physrevb.39.2748
Autor:
D. W. Cooke, M. E. Schillaci, C. Boekema, R. L. Hutson, J. A. Flint, J. Oostens, J. L. Smith, J. O. Willis, R. L. Lichti, S. P. Weathersby, M. A. Maez, H. Rempp, K. C. B. Chan, R.S. Kwok
Publikováno v:
Physical Review B. 37:9401-9404
Positive muon spin-rotation ($\ensuremath{\mu}\mathrm{SR}$) measurements on $\mathrm{Gd}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{x} (x\ensuremath{\approx}7)$ have been conducted in the temperature interval 5.8-300 K. A temperature-dependent re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38c14cc7ca62387e3ce5eade1664165a
https://doi.org/10.1103/physrevb.37.9401
https://doi.org/10.1103/physrevb.37.9401