Berkeley Lab

Publications

2017

Shapes of rotating superfluid helium nanodroplets

Charles Bernando, Rico Mayro P. Tanyag, Curtis Jones, Camila Bacellar, Maximilian Bucher, Ken R. Ferguson, Daniela Rupp, Michael Ziemkiewicz, Luis F. Gomez, Adam S. Chatterley, Tais Gorkhover, Maria Mueller, John Bozek, Sebastian Carron, Justin Kwok, Samuel L. Butler, Thomas Moeller, Christoph Bostedt, Oliver Gessner and Andrey F. Vilesov, Phys. Rev. B 95, 064510 (2017).

2016

Probing charge dynamics in bare and dye-sensitized ZnO nanocrystals with time-resolved XPS

S. Neppl, J. Mahl, A. Shavorskiy, H. Bluhm, and O. Gessner, in Ultrafast Phenomena XX, Louis DiMauro, Makoto Kuwata-Gonokami, Giulio Cerullo, Jennifer Ogilvie, Eds., 2016.

Direct observation of ring-opening dynamics in strong-field ionized selenophene using femtosecond inner-shell absorption spectroscopy

Florian Lackner, Adam S. Chatterley, Chaitanya D. Pemmaraju, Kristina D. Closser, David Prendergast, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, J. Chem. Phys. 145, 234313 (2016).

Dissociation dynamics and electronic structures of highly excited ferrocenium ions studied by femtosecond XUV absorption spectroscopy

Adam S. Chatterley, Florian Lackner, C. D. Pemmaraju, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, J. Phys. Chem. A 120, 9509 (2016).

Towards efficient time-resolved X-ray absorption studies of electron dynamics at photocatalytic interfaces

Stefan Neppl, Johannes Mahl, Anton S. Tremsin, Bruce Rude, Ruimin Qiao, Wanli Yang, Jinghua Guo, and Oliver Gessner, Faraday Discuss. 194, 659 (2016).

Tracking dissociation dynamics of strong-field ionized 1,2-dibromoethane with femtosecond XUV transient absorption spectroscopy

Adam S. Chatterley, Florian Lackner, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, Phys. Chem. Chem. Phys. 18, 14644 (2016).

Coupled motion of Xe clusters and quantum vortices in He nanodroplets

Curtis F. Jones, Charles Bernando, Rico Mayro P. Tanyag, Camila Bacellar, Ken R. Ferguson, Luis F. Gomez, Denis Anielski, Ali Belkacem, Rebecca Boll, John Bozek, Sebastian Carron, James Cryan, Lars Englert, Sascha W. Epp, Benjamin Erk, Lutz Foucar, Robert Hartmann, Daniel Neumark, Daniel Rolles, Artem Rudenko, Katrin R. Siefermann, Fabian Weise, Benedikt Rudek, Felix P. Sturm, Joachim Ullrich, Christoph Bostedt, Oliver Gessner, and Andrey F. Vilesov, Phys. Rev. B 93, 180510(R) (2016).

Monitoring Ultrafast Chemical Dynamics by Time-Domain X-Ray Photo- and Auger-Electron Spectroscopy

Oliver Gessner and Markus Gühr, Acc. Chem. Res. 49, 138 (2016).

2015

X-ray coherent diffractive imaging by immersion in nanodroplets

Rico Mayro P. Tanyag, Charles Bernando, Curtis F. Jones, Camila Bacellar, Ken R. Ferguson, Denis Anielski, Rebecca Boll, Sebastian Carron, James P. Cryan, Lars Englert, Sascha W. Epp, Benjamin Erk, Lutz Foucar, Luis F. Gomez, Robert Hartmann, Daniel M. Neumark, Daniel Rolles, Benedikt Rudek, Artem Rudenko, Katrin R. Siefermann, Joachim Ullrich, Fabian Weise, Christoph Bostedt, Oliver Gessner, and Andrey F. Vilesov, Struct. Dyn. 2, 051102 (2015).

Time-resolved X-ray Photoelectron Spectroscopy Techniques for the Study of Interfacial Charge Dynamics

Stefan Neppl and Oliver Gessner, J. Electron Spectrosc. Relat. Phenom. 200, 64 (2015).

Ultrafast electronic dynamics in helium nanodroplets

Michael P. Ziemkiewicz, Daniel M. Neumark, and Oliver Gessner, Int. Rev. Phys. Chem. 34, 239 (2015).

Site-specific probing of charge transfer dynamics in organic photovoltaics

Tiberiu Arion, Stefan Neppl, Friedrich Roth, Andrey Shavorskiy, Hendrik Bluhm, Zahid Hussain, Oliver Gessner, and Wolfgang Eberhardt, Appl. Phys. Lett. 106, 121602 (2015).

Toward Ultrafast In Situ X-Ray Studies of Interfacial Photoelectrochemistry

S. Neppl, Y.-S. Liu, C.-H. Wu, A. Shavorskiy, I. Zegkinoglou, T. Troy, D. S. Slaughter, M. Ahmed, A. S. Tremsin, J.-H. Guo, P.-A. Glans, M. Salmeron, H. Bluhm, and O. Gessner, in Ultrafast Phenomena XIX, Kaoru Yamanouchi, Steven Cundiff, Regina de Vivie-Riedle, Makoto Kuwata-Gonokami, Louis DiMauro, Eds., Springer (2015).

2014

Capturing interfacial photo-electrochemical dynamics with picosecond time-resolved X-ray photoelectron spectroscopy

Stefan Neppl, Andrey Shavorskiy, Ioannis Zegkinoglou, Matthew Fraund, Daniel S. Slaughter, Tyler Troy, Michael P. Ziemkiewicz, Musahid Ahmed, Sheraz Gul, Bruce Rude, Jin Z. Zhang, Anton S. Tremsin, Per-Anders Glans, Yi-Sheng Liu, Cheng Hao Wu, Jinghua Guo, Miquel Salmeron, Hendrik Bluhm, and Oliver Gessner, Faraday Discuss. 171, 219 (2014).

Femtosecond time-resolved XUV + UV photoelectron imaging of pure helium nanodroplets

Michael P. Ziemkiewicz, Camila Bacellar, Katrin Siefermann, Stephen R. Leone, Daniel M. Neumark, and Oliver Gessner, J. Chem. Phys. 141, 174306 (2014).

Sub-Nanosecond Time-Resolved Ambient-Pressure X-ray Photoelectron Spectroscopy Setup for Pulsed and Constant Wave X-ray Light Sources

Andrey Shavorskiy, Stefan Neppl, Daniel S. Slaughter, James P. Cryan, Katrin R. Siefermann, Fabian Weise, Ming-Fu Lin, Camila Bacellar, Michael P. Ziemkiewicz, Ioannis Zegkinoglou, Matthew W. Fraund, Champak Khurmi, Marcus P. Hertlein, Travis W. Wright, Nils Huse, Robert W. Schoenlein, Tolek Tyliszczak, Giacomo Coslovich, Joseph Robinson, Robert A. Kaindl, Bruce S. Rude, Andreas Ölsner, Sven Mähl, Hendrik Bluhm, and Oliver Gessner, Rev. Sci. Instrum. 85, 093102 (2014).

Shapes and Vorticities of Superfluid Helium Nanodroplets

Luis F. Gomez, Ken R. Ferguson, James P. Cryan, Camila Bacellar, Rico Mayro P. Tanyag, Curtis Jones, Sebastian Schorb, Denis Anielski, Ali Belkacem, Charles Bernando, Rebecca Boll, John Bozek, Sebastian Carron, Gang Chen, Tjark Delmas, Lars Englert, Sascha W. Epp, Benjamin Erk, Lutz Foucar, Robert Hartmann, Alexander Hexemer, Martin Huth, Justin Kwok, Stephen R. Leone, Jonathan H.S. Ma, Filipe R. N. C. Maia, Erik Malmerberg, Stefano Marchesini, Daniel M. Neumark, Billy Poon, James Prell, Daniel Rolles, Benedikt Rudek, Artem Rudenko, Martin Seifrid, Katrin R. Siefermann, Felix P. Sturm, Michele Swiggers, Joachim Ullrich, Fabian Weise, Petrus Zwart, Christoph Bostedt, Oliver Gessner, Andrey F. Vilesov, Science 345, 906 (2014) .

Atomic Scale Perspective of Ultrafast Charge Transfer at a Dye-Semiconductor Interface

K. R. Siefermann, C. D. Pemmaraju, S. Neppl, A. Shavorskiy, A. A. Cordones, J. Vura-Weis, D. S. Slaughter, F. P. Sturm, F. Weise, H. Bluhm, M. L. Strader, H. Cho, M.-F. Lin, C. Bacellar, C. Khurmi, J. Guo, G. Coslovich, J. S. Robinson, R. A. Kaindl, R. W. Schoenlein, A. Belkacem, D. M. Neumark, S. R. Leone, D. Nordlund, H. Ogasawara, O. Krupin, J. J. Turner, W. F. Schlotter, M. R. Holmes, M. Messerschmidt, M. P. Minitti, S. Gul, J. Z. Zhang, N. Huse, D. Prendergast, and O. Gessner, J. Phys. Chem. Lett. 5, 2753 (2014).

Simulations of the dissociation of small helium clusters with ab initio molecular dynamics in electronically excited states

Kristina D. Closser, Oliver Gessner, and Martin Head-Gordon, J. Chem. Phys 140, 134306 (2014).

Ionization and Dissociation Dynamics of Vinyl Bromide Probed by Femtosecond Extreme Ultraviolet  Transient Absorption Spectroscopy

Ming-Fu Lin, Daniel M. Neumark, Oliver Gessner, and Stephen R. Leone, J. Chem. Phys. 140, 064311 (2014).

2013

Time-Resolved X-Ray Photoelectron Spectroscopy Techniques for Real-Time Studies of Interfacial Charge Transfer Dynamics

Andrey Shavorskiy, Amy Cordones, Josh Vura-Weis, Katrin Siefermann, Daniel Slaughter, Felix Sturm, Fabian Weise, Matthew Strader, Hana Cho, Ming-Fu Lin, Camila Bacellar, Champak Khurmi, Marcus Hertlein, Jinghua Guo, Hendrik Bluhm, Tolek Tyliszczak, David Prendergast, Giacomo Coslovich, Joseph Robinson, Robert A. Kaindl, Robert W. Schoenlein, Ali Belkacem, Thorsten Weber, Daniel M. Neumark, Stephen R. Leone, Dennis Nordlund, Hirohito Ogasawara, Anders R. Nilsson, Oleg Krupin, Joshua J. Turner, William F. Schlotter, Michael R. Holmes, Philip A. Heimann, Marc Messerschmidt, Michael P. Minitti, Martin Beye, Sheraz Gul, Jin Z. Zhang, Nils Huse, and Oliver Gessner, Application of Accelerators in Research and Industry, AIP Conf. Proc. 1525, 475 (2013).

Attosecond Spectroscopy

Olga Smirnova and Oliver GessnerChem. Phys. 414, 1 (2013) .

2012

Strong-field induced XUV transmission and multiplet splitting in 4d-1 – 6p core-excited Xe studied by femtosecond XUV transient absorption spectroscopy

Ming-Fu Lin, Adrian N. Pfeiffer, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, J. Chem. Phys. 137, 244305 (2012).

Ultrafast Probing of Ejection Dynamics of Rydberg Atoms and Molecular Fragments from Electronically Excited Helium Nanodroplets

Oliver Bünermann, Oleg Kornilov, Daniel J. Haxton, Stephen R. Leone, Daniel M. Neumark, and Oliver Gessner, J. Chem. Phys. 137, 214302 (2012).

Differential near-edge coherent diffractive imaging using a femtosecond high-harmonic XUV light source

Fabian Weise, Daniel M. Neumark, Stephen R. Leone, and Oliver Gessner, Opt. Express 20, 26167 (2012).

Molecular Frame Auger Electron Spectrum from N2

J. P. Cryan, J. M. Glownia, J. Andreasson, A. Belkacem, N. Berrah, C. I. Blaga, C. Bostedt, J. Bozek, N. A. Cherepkov, L. F. DiMauro, L. Fang, O. Gessner, M. Gühr, J. Hajdu, M. P. Hertlein, M. Hoener, O. Kornilov, J. P. Marangos, A. M. March, B. K. McFarland, H. Merdji, M. Messerschmidt, V. Petrovic, C. Raman, D. Ray, D. Reis, S. K. Semenov, M. Trigo, J. White, W. White, L. Young, P. H. Bucksbaum, and R. N. Coffee, J. Phys. B: At. Mol. Opt. Phys. 45, 055601 (2012).

Femtosecond Extreme Ultraviolet Ion Imaging of Ultrafast Dynamics in Electronically Excited Helium Nanodroplets

Oliver Bünermann, Oleg Kornilov, Stephen R. Leone, Daniel M. Neumark, and Oliver Gessner, IEEE J. Sel. Top. Quantum Electron 18, 308 (2012).

2011

Femtosecond photoelectron imaging of transient electronic states and Rydberg atom emission from electronically excited He droplets

Oleg Kornilov, Oliver Bünermann, Daniel J. Haxton, Stephen R. Leone, Daniel M. Neumark, and Oliver Gessner, J. Phys. Chem. A 115, 7891 (2011).

Intense Femtosecond X-ray Photoionization Studies of Nitrogen – How Molecules interact with Light from the LCLS

O. Gessner, O. Kornilov, M. Hoener, L. Fang, and N. Berrah, in Ultrafast Phenomena XVII, M. Chergui, D. M. Jonas, E. Riedle, R. W. Schoenlein, A. J. Taylor, Eds., Oxford University Press (2011).

2010

Double core hole production in N2: Beating the Auger clock

L. Fang, M. Hoener, O. Gessner, F. Tarantelli, S.T. Pratt, O. Kornilov, C. Buth, M. Gühr, E.P. Kanter, C. Bostedt, J.D. Bozek, P.H. Bucksbaum, M. Chen, R. Coffee, J. Cryan, M. Glownia, E. Kukk, S.R. Leone, and N. Berrah, Phys. Rev. Lett. 105, 083005 (2010).

Auger electron angular distribution of double core hole states in the molecular reference frame

James P. Cryan, J. M. Glownia, J. Andreasson, A. Belkacem, N. Berrah, C. I. Blaga, C. Bostedt, J. Bozek, C. Buth, L. F. DiMauro, L. Fang, O. Gessner, M. Guehr, J. Hajdu, M. P. Hertlein, M. Hoener, O. Kornilov, J. P. Marangos, A. M. March, B. K. McFarland, H. Merdji, V. Petrovic, C. Raman, D. Ray, D. Reis, F. Tarantelli, M. Trigo, J. White, W. White, L. Young, P. H. Bucksbaum, and R. N. Coffee, Phys. Rev. Lett. 105, 083004 (2010).

Time-resolved pump-probe experiments at the LCLS

James M. Glownia, J. Cryan, J. Andreasson, A. Belkacem, N. Berrah, C. I. Blaga, C. Bostedt, J. Bozek, L. F. DiMauro, L. Fang, J. Frisch, O. Gessner, M. Gühr, J. Hajdu, M. P. Hertlein, M. Hoener, G. Huang, O. Kornilov, J. P. Marangos, A. M. March, B. K. McFarland, H. Merdji, V. S. Petrovic, C. Raman, D. Ray, D. A. Reis, M. Trigo, J. L. White, W. White, R. Wilcox, L. Young, R. N. Coffee, and P. H. Bucksbaum, Opt. Express 18, 17620 (2010).

Ultra-intense X-ray Induced Ionization, Dissociation, and Frustrated Absorption in Molecular Nitrogen

M. Hoener, L. Fang, O. Kornilov, O. Gessner, S.T. Pratt, M. Gühr, E.P. Kanter, C. Blaga, C. Bostedt, J.D. Bozek, P.H. Bucksbaum, C. Buth, M. Chen, R. Coffee, J. Cryan, L. DiMauro, M. Glownia, E. Hosler, E. Kukk, S.R. Leone, B. McFarland, M. Messerschmidt, B. Murphy, V. Petrovic, D. Rolles, and N. Berrah, Phys. Rev. Lett. 104, 253002 (2010).

Nanograting-based compact VUV spectrometer and beam profiler for in-situ characterization of high-order harmonic generation light sources

Oleg Kornilov, Russell Wilcox, and Oliver Gessner, Rev. Sci. Instrum. 81, 063109 (2010).

Ultrafast Dynamics in Helium Nanodroplets Probed by Femtosecond Time-Resolved EUV Photoelectron Imaging

Oleg Kornilov, Chia C. Wang, Oliver Bünermann, Andrew T. Healy, Mathew Leonard, Chunte Peng, Stephen R. Leone, Daniel M. Neumark, and Oliver Gessner, J. Phys. Chem. A 114, 1437 (2010).

2009

Time-Resolved Molecular Frame Dynamics of Fixed-in-Space CS2 Molecules

Christer Z. Bisgaard, Owen J. Clarkin, Guorong Wu, Anthony M. D. Lee, Oliver Geßner, Carl C. Hayden, Albert Stolow, Science 323, 1464 (2009).

2008

Photoelectron Imaging of Helium Droplets Doped with Xe and Kr Atoms

Chia C. Wang, Oleg Kornilov, Oliver Gessner, Jeong Hyun Kim, Darcy S. Peterka, and Daniel M. Neumark,  J. Phys. Chem. A 112, 9356 (2008).