David J Flannigan
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Explore the profile of David J Flannigan including associated specialties, affiliations and a list of published articles.
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46
Citations
489
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Recent Articles
1.
Willis S, Willis S, Flannigan D
Chemphyschem
. 2025 Jan;
26(5):e202401032.
PMID: 39804845
Broader adoption of 4D ultrafast electron microscopy (UEM) for the study of chemical, materials, and quantum systems is being driven by development of new instruments as well as continuous improvement...
2.
Chen J, Willis S, Flannigan D
Rev Sci Instrum
. 2024 Sep;
95(9).
PMID: 39311672
Efforts to push the spatiotemporal imaging-resolution limits of femtosecond laser-driven ultrafast electron microscopes (UEMs) to the combined angstrom-fs range will benefit from stable sources capable of generating high bunch charges....
3.
Flannigan D, VandenBussche E
Micron
. 2023 Jun;
172:103501.
PMID: 37390662
We review the use of pulsed electron-beams in transmission electron microscopes (TEMs) for the purpose of mitigating specimen damage. We begin by placing the importance of TEMs with respect to...
4.
Flannigan D, Curtis W, VandenBussche E, Zhang Y
J Chem Phys
. 2022 Nov;
157(18):180903.
PMID: 36379784
The spatial and energy resolutions of state-of-the-art transmission electron microscopes (TEMs) have surpassed 50 pm and 5 meV. However, with respect to the time domain, even the fastest detectors combined...
5.
Curtis W, Willis S, Flannigan D
Phys Chem Chem Phys
. 2022 May;
24(22):14044-14054.
PMID: 35640169
In femtosecond (fs) 4D ultrafast electron microscopy (UEM), a tradeoff is made between photoelectrons per packet and time resolution. One consequence of this can be longer-than-desirable acquisition times for low-density...
6.
Chen J, Flannigan D
Ultramicroscopy
. 2022 Feb;
234:113485.
PMID: 35151041
We report a method for measuring spot size and focusing conditions of the femtosecond (fs) excitation laser in situ at the specimen location in 4D ultrafast electron microscopy (UEM). The...
7.
Zhang Y, Choi M, Haugstad G, Tadmor E, Flannigan D
ACS Nano
. 2021 Nov;
15(12):20253-20260.
PMID: 34780160
Key properties of two-dimensional (2D) layered materials are highly strain tunable, arising from bond modulation and associated reconfiguration of the energy bands around the Fermi level. Approaches to locally controlling...
8.
Curtis W, Flannigan D
Phys Chem Chem Phys
. 2021 Oct;
23(41):23544-23553.
PMID: 34648611
Though efforts to improve the temporal resolution of transmission electron microscopes (TEMs) have waxed and waned for decades, with relatively recent advances routinely reaching sub-picosecond scales, fundamental and practical challenges...
9.
Zhang Y, Flannigan D
Nano Lett
. 2021 Aug;
21(17):7332-7338.
PMID: 34406014
Step edges are an important and prevalent topological feature that influence catalytic, electronic, vibrational, and structural properties arising from modulation of atomic-scale force fields due to edge-atom relaxation. Direct probing...
10.
Reisbick S, Zhang Y, Chen J, Engen P, Flannigan D
J Phys Chem Lett
. 2021 Jul;
12(27):6439-6447.
PMID: 34236194
Ultrafast manipulation of phase domains in quantum materials is a promising approach to unraveling and harnessing interwoven charge and lattice degrees of freedom. Here we find evidence for coupling of...