Articles
Open-access publications are highlighted with a .
S. Hammer, T. L. Britt, L. Kremeyer, M. Rödel, D. Cai, J. Pflaum, B. J. Siwick, Excimer Formation in Zinc-phthalocyanine Revealed using Ultrafast Electron Diffraction, arXiv:2404.18292 (2024) DOI: 10.48550/arXiv.2404.18292
L. Kremeyer, T. L. Britt, B. J. Siwick and S. C. Huberman, Ultrafast electron diffuse scattering as a tool for studying phonon transport: Phonon hydrodynamics and second sound oscillations, Struct. Dyn. 11 (2024) DOI: 10.1063/4.0000224
T. L. Britt and B. J. Siwick, Ultrafast phonon diffuse scattering as a tool for observing chiral phonons in monolayer hexagonal lattices, Phys. Rev. B 107 (2023) DOI: 10.1103/PhysRevB.107.214306. Older preprint version available on arXiv
D. Filippetto, P. Musumeci, R. K. Li, B. J. Siwick, M. R. Otto, M. Centurion and J. P. F. Nunes, Ultrafast electron diffraction: Visualizing dynamic states of matter, Rev. Mod. Phys. 94 (2022) DOI: 10.1103/RevModPhys.94.045004. Older preprint version available on arXiv
T. L. Britt, Q. Li, L. P. René de Cotret, N. Olsen, M. Otto, S. A. Hassan, M. Zacharias, F. Caruso, X. Zhu and B. J. Siwick, Direct view of phonon dynamics in atomically thin MoS2, Nano Lett. 22 (2022) DOI: 10.1021/acs.nanolett.2c00850. Older preprint version available on arXiv
L. P. René de Cotret, M. R. Otto, J.-H. Pöhls, Z. Luo, M. G. Kanatzidis, and B. J. Siwick, Direct visualization of polaron formation in the thermoelectric SnSe, PNAS 119 (2022) DOI: 10.1073/pnas.2113967119. Older preprint version available on arXiv. Featured on McGill University News
B. J. Siwick, I. Arslan, I. and X. Wang, Frontier Nonequilibrium Materials Science Enabled by Ultrafast Electron Methods, MRS Bulletin 46 (2021) DOI: 10.1557/s43577-021-00148-7. Special Issue of the MRS Bulletin
H. A. Dürr, R. Ernstorfer and B. J. Siwick, Revealing Momentum-Dependent Electron–Phonon and Phonon–Phonon Coupling in Complex Materials with Ultrafast Electron Diffuse Scattering. MRS Bulletin 46 (2021) 731. DOI:10.1557/s43577-021-00156-7
M. R. Otto, J.-H. Pöhls, L. P. René de Cotret, M. J. Stern, M. Sutton, and B. J. Siwick, Mechanisms of electron-phonon coupling unraveled in momentum and time: The case of soft-phonons in TiSe2, Science Advances 7 (2021) DOI: 10.1126/sciadv.abf2810
D. Matte, N. Chamanara, L. Gingras, L. P. René de Cotret, T. L. Britt, B. J. Siwick, and D. G. Cooke, Extreme lightwave electron field emission from a nanotip, Phys. Rev. Research 3 (2021) DOI: 10.1103/PhysRevResearch.3.013137.
L. P. René de Cotret, J.-H. Pöhls, M. J. Stern, M. R. Otto, M. Sutton, and B. J. Siwick, Time- and momentum-resolved phonon population dynamics with ultrafast electron diffuse scattering, Phys. Rev. B 100 (2019) DOI: 10.1103/PhysRevB.100.214115. Featured as an Editors’ Suggestion as well as a Kaleidoscope. Older preprint version available on arXiv.
M. R. Otto, L. P. René de Cotret, D. A. Valverde-Chavez, K. L. Tiwari, N. Émond, M. Chaker, D. G. Cooke, and B. J. Siwick, How optical excitation controls the structure and properties of vanadium dioxide, PNAS 116 issue 2 (2019), pp. 450-455 DOI: 10.1073/pnas.1808414115.
L. P. René de Cotret, M. R. Otto, M. J. Stern, and B. J. Siwick, An open-source software ecosystem for the interactive exploration of ultrafast electron scattering data, Advanced Structural and Chemical Imaging 4:11 (2018) DOI: 10.1186/s40679-018-0060-y.
M. J. Stern*, L. P. René de Cotret*, M. R. Otto, R. P. Chatelain, J.-P. Boisvert, M. Sutton, and B. J. Siwick, Mapping momentum-dependent electron-phonon coupling and non-equilibrium phonon dynamics with ultrafast electron diffuse scattering, Phys. Rev. B 97 (2018) DOI: 10.1103/PhysRevB.97.165416. Featured as an American Physics Society Viewpoint. Older preprint version available on arXiv.
M. R. Otto, L. P. René de Cotret, M. J. Stern, and B. J. Siwick, Solving the Jitter Problem in Microwave Compressed Ultrafast Electron Diffraction Instruments: Robust Sub-50 fs Cavity-Laser Phase Stabilization, Struct. Dyn. 5 (2017) DOI: 10.1063/1.4989960
M. Mankos, K. Shadman, and B. J. Siwick, A novel electron mirror pulse compressor, Ultramicroscopy 183 (2017) DOI: 10.1016/j.ultramic.2017.05.004
B. J. Siwick, Viewpoint: electron pulses made faster than atomic motions, Physics (2017) DOI: 10.1103/Physics.10.39.
L. P. René de Cotret and B. J. Siwick, A general method for baseline-removal in ultrafast electron powder diffraction data using the dual-tree complex wavelet transform, Struct. Dyn. 4 (2017) DOI: 10.1063/1.4972518.
H. Schwoerer, H. N. Chapman, B. J. Siwick, and R. J. D. Miller, Special issue on imaging the dynamic structure of matter, J. Phys. B 49 (2016) DOI: 10.1088/0953-4075/49/15/150201
R. P. Chatelain, V. R. Morrison, Bart L. M. Klarenaar and B. J. Siwick, Coherent and incoherent electron-phonon coupling in graphite observed with radio-frequency compressed ultrafast electron diffraction, Phys. Rev. Lett. 113 (2014) 235502.
V. R. Morrison, R. P. Chatelain, K. L. Tiwari, A. Hendaoui, A. Bruhács, M. Chaker and B. J. Siwick, A photoinduced metal-like phase of monoclinic vanadium dioxide revealed by ultrafast electron diffraction, Science 346 (2014) pp. 445-448.
M. J. Stern, L. Nikolova, J. MacLeod, B. Reed, G. H. Campbell, H. Ibrahim, F. Rosei, T. LaGrange, B. J. Siwick, In situ investigation of explosive crystallization in a-Ge: Experimental determination of the interface response function using dynamic transmission electron microscopy, J. Appl. Phys. 116 (2014) 093512.
U. Rivard, V. Thomas, A. Bruhács, B. J. Siwick and R. Iftimie, Donor-Bridge-Acceptor Proton Transfer in Aqueous Solution, J. Phys. Chem. Lett. 5 (2014) pp. 3200-3205.
B. J. Siwick and E. Collet, Physical Chemistry: Molecular Motion Watched, Nature 496 (2013)
L. Nikolova, T. LaGrange, M. J. Stern, J. M. MacLeod, B. W. Reed, H. Ibrahim, G. H. Campbell, F. Rosei and B. J. Siwick, Complex crystallization dynamics in amorphous germanium observed with dynamic transmission electron microscopy, Physical Review B 87 (2013)
V. R. Morrison, R. P. Chatelain, C. Godbout and B. J. Siwick, Direct optical measurements of the evolving spatio-temporal charge density in ultrashort electron pulses, Optics Express 21 (2013)
T. LaGrange, B. W. Reed, M. K. Santala, J. T. McKeown, A. Kulovits, J. M. K. Wiezorek, L. Nikolova, F. Rosei, B. J. Siwick and G. H. Campbell, Approaches for ultrafast imaging of transient materials processes in the transmission electron microscope, Micron 43 (2012)
V. Thomas, U. Rivard, P. Maurer, A. Bruhács, B. J. Siwick and R. Iftimie, Concerted and sequential proton transfer mechanisms in water-separated acid-base encounter pairs, Journal of Physical Chemistry Letters 3 (2012)
R. P. Chatelain, V. R. Morrison, C. Godbout and B. J. Siwick, Ultrafast electron diffraction with radio-frequency compressed electron pulses, Applied Physics Letters 101 (2012)
R. P. Chatelain, V. R. Morrison, C. Godbout, B. van der Geer, M. de Loos and B. J. Siwick, Space-charge effects in ultrafast electron diffraction patterns from single crystals, Ultramicroscopy 116 (2012)
M. L. Taheri, S. McGowan, L. Nikolova, J. E. Evans, N. Teshlich, J. P. Lu, T. LaGrange, F. Rosei, B. J. Siwick and N. D. Browning, In situ laser crystallization of amorphous silicon: Controlled nanosecond studies in the dynamic transmission microscope, Applied Physics Letters 97 (2010)
L. Nikolova, T. LaGrange, B. W. Reed, M. J. Stern, N. D. Browning, G. H. Campbell, J. C. Kieffer, B. J. Siwick and F. Rosei, Nanocrystallization of amorphous germanium films observed with nanosecond temporal resolution, Applied Physics Letters 97 (2010)
M. J. Cox, B. J. Siwick and H. J. Bakker, Influence of Ions on Aqueous Acid-Base Reactions, Phys Chem. Chem. Phys. 10 (2009), pp. 236-244
B. J. Siwick, M. J. Cox and H. J. Bakker, Long-range proton transfer in aqueous acid-base reactions, J. Phys Chem. B. 112 (2008), pp. 378-389
T. van Oudheusden, E. F. de Jong, S. B. van der Geer, W.P. E. M. Op ’t Root, O. J. Luiten and B. J. Siwick, Electron source concept for single-shot sub-100 fs electron diffraction in the 100 keV range, J. Appl. Phys. 102 (2007) DOI:10.1063/1.2801027.
B. J. Siwick and H. J. Bakker, On the role of water in intermolecular proton transfer reactions, J. Am. Chem. Soc. 129 (44) 2007, pp. 13412 - 13420.
W. E. King, G. H. Campbell, A. M. Frank, B. W. Reed, J. Schmerge, B. J. Siwick, B. C. Stuart and P. M. Weber, Ultrafast Electron Microscopy in Material Science, Biology and Chemistry, J. Appl. Phys. 97 (11) 2005, Art. No. 111101. DOI:10.1063/1.1927699.
B. J. Siwick, A. A. Green, C. T. Hebeisen and R. J. D. Miller, Characterization of Ultrashort Electron Pulses by Electron-Laser Pulse Cross-Correlation, Opt. Lett. 30 (9) 2005, pp. 1057-1059.
B. J. Siwick, J. R. Dwyer, R. E. Jordan and R. J. D. Miller, Femtosecond Electron Diffraction Studies of Strongly Driven Structural Phase Transitions, Chem. Phys. 299 (2-3) 2004, pp. 285-305. Special Issue on Ultrafast Science with X-rays and Electrons
B. J. Siwick, J. R. Dwyer, R. E. Jordan and R. J. D. Miller, An Atomic-Level View of Melting Using Femtosecond Electron Diffraction, Science 302 (5649) 2003, DOI:10.1126/science.1090052. This article was the cover story of the Nov. 21, 2003 issue
B. J. Siwick, J. R. Dwyer, R. E. Jordan and R. J. D. Miller, Response to Comment on: Ultrafast Electron Optics: Propagation Dynamics of Femtosecond Electron Packets [J. Appl. Phys. 92, 1643 (2002)], J. Appl. Phys. 94 (1) 2003, pp. 807-808
B. J. Siwick, J. R. Dwyer, R. E. Jordan and R. J. D. Miller, Ultrafast Electron Optics: Propagation Dynamics of Femtosecond Electron Packets, J. Appl. Phys. 92 (3) 2002, pp. 1643-1648
D. Kraemer, B. J. Siwick and R. J. D. Miller, Ultra-High Density Optical Data Storage: Information Retrieval an Order of Magnitude Beyond the Rayleigh Limit, Chem. Phys., 285 (1) 2002, pp. 73-83 Special Issue on Unconventional Photoactive Materials
B. J. Siwick, O. Kalinina, E. Kumacheva, R. J. D. Miller and J. Noolandi, Polymeric Nanostructured Materials for High-Density Three-Dimensional Optical Memory, J. Appl. Phys. 90 (10) 2001, pp. 5328-5334
Proceedings
M. J. Stern, L. P. René de Cotret, M. R. Otto, R. P. Chatelain, J.-P. Boisvert, M. Sutton, and B. J. Siwick, Mapping momentum-dependent electron-phonon coupling and non-equilibrium phonon dynamics with ultrafast electron diffuse scattering, EPJ Web of Conferences 205, 08013 (2019) DOI: 10.1051/epjconf/201920508013.
M. R. Otto, L. P. René de Cotret, M. J. Stern, and B. J. Siwick, Robust sub-50 fs cavity-laser phase stabilization for ultra-fast electron diffraction instruments, EPJ Web of Conferences 205, 08015 (2019) DOI: 10.1051/epjconf/201920508015
Theses and Memoirs
Laurent P. René de Cotret (PhD. Physics, 2021), From carrier cooling to polaron formation: ultrafast phonon dynamics across the Brillouin zone PDF. All source material, including text files, figure scripts, and more, are available on GitHub.
Martin R. Otto (Ph.D. Physics, 2019), Advancements in electron pulse compression technology applied to ultrafast electron scattering PDF
Mark J. Stern (Ph.D. Physics, 2018), Ultrafast electron diffuse scattering and its application to 2D materials PDF
Laurent P. René de Cotret (M.Sc. Physics, 2016), New Data Analysis and Visualization Methods for Ultrafast Electron Diffraction. PDF
Andrew Bruhács (Ph.D. Chemistry, 2015), Probing Ultrafast Chemical Reaction and Material Phase Transition Dynamics with Visible and mid-Infrared Spectroscopy. PDF
Kunal Tiwari (M.Sc. Physics, 2014), The photo-induced phase transitions of vanadium dioxide. PDF
Robert Chatelain (Ph.D. Physics, 2014), Radio-frequency pulse compression for high-brightness ultrafast electron diffraction: design, characterization and application. PDF
Vance Morrison (Ph.D. Physics, 2014), Structural dynamics of the metal-insulator transition in VO2: an ultrafast electron diffraction study with radio-frequency compressed electron pulses. PDF
Mark Stern (M.Sc. Physics, 2012), Time-resolved transmission electron microscopy: The structural dynamics of explosive crystallization in amorphous germanium. PDF
Shona McGowan (M.Sc., Physics 2009), In situ study of amorphous semiconductor crystallization by Dynamic Transmission Electron Microscopy. PDF
Thana Ghunaim (M.Sc., Physics 2009), Magnetic Lens Design for an Ultrafast Electron Diffraction Beamline. PDF
Robert Chatelain (M.Sc., Physics 2008), Radio-Frequency Compression of Electron Bunches Applied to Ultrafast Electron Diffraction. PDF
Vance Morrison (M.Sc., Physics 2008), Generation of tunable femtosecond laser pulses and the construction of an ultrafast pump-probe spectrometer. PDF
Public datasets
The Siwick research group has made a few dataset publically available here:
If you have any trouble accessing this data, do not hesitate to contact us.
