Open-access publications are highlighted with a .
Letters and articles
T. L. Britt, Q. Li, L. P. René de Cotret, N. Olsen, M. R. Otto, S. A. Hassan, M. Zacharias, F. Caruso, X. Zhu, and B. J. Siwick, Direct view of phonon dynamics in atomically thin MoS2, ACS Nano Letters (2022) DOI: 10.1021/acs.nanolett.2c00850. Preprint 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. Preprint version available on arXiv. Featured on McGill University News
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. 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 (2018) 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
L. P. René de Cotret, M. J. Stern, 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
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
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
Theses and dissertation
Ph.D. dissertation: 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.
Master of Science thesis: New data analysis and visualization methods for ultrafast electron diffraction (PDF).
Undergraduate thesis: High-speed information processing for laserlocking system applied to optomechanical cavities (PDF). It had an associated poster.
Conference proceedings
L. P. René de Cotret, M. J. Stern, 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
Posters
February 2020 | Gordon Research Conference on Ultrafast Cooperative Systems Time-and momentum-resolved phonon population dynamicswith ultrafast electron diffuse scattering (PDF)
February 2017 | 5th Banff Meeting on Ultrafast Structural Dynamics Photoinduced phase transitions in VO: visualizing the time-dependent crystal potential using ultrafast electron diffraction data (PDF)
February 2016 | Gordon Research Conference on Ultrafast Cooperative Systems Photoinduced phase transitions in VO: visualizing the time-dependent crystal potential using ultrafast electron diffraction data (PDF)
Talks
2021-03-01 | Séminaire pour le regroupement québécois stratégique sur les matériaux de pointe (RQMP) | Contributed talk titled Outrunning temperature to find the origins of high thermoelectric performance in SnSe (Link to video )
2019-02-11 | 6th Banff Meeting on Ultrafast Structural Dynamics Contributed talk titled Ultrafast electron diffuse scattering as a window into e-ph and ph-ph dynamics of two-dimensional materials (Link to program).
2018-09-28 | SLAC National Accelerator Center Invited talk titled Mapping momentum-dependent electron-phonon coupling and phonon dynamics in two-dimensional materials using ultrafast electron diffuse scattering (Link to abstract). This talk was presented during the LCLS/SSRL Users’ meeting 2018.
2018-07-23 | Fritz-Haber Institute Invited seminar titled Mapping momentum-dependent electron-phonon coupling and phonon dynamics in two-dimensional materials using ultrafast electron diffuse scattering. (Link to abstract)
2016-11-09 | Stellenbosch University Invited workshop titled Visualizing structural dynamics using ultrafast powder electron diffraction