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Daniel Rolles

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Articles 88
Citations 1508
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Recent Articles
1.
Jahnke T, Mai S, Bhattacharyya S, Chen K, Boll R, Castellani M, et al.
Nat Commun . 2025 Feb; 16(1):2074. PMID: 40021641
The photochemistry of heterocyclic molecules plays a decisive role for processes and applications like DNA photo-protection from UV damage and organic photocatalysis. The photochemical reactivity of heterocycles is determined by...
2.
Borne K, ONeal J, Wang J, Isele E, Obaid R, Berrah N, et al.
Rev Sci Instrum . 2024 Dec; 95(12). PMID: 39704606
We describe the design and performance of a magnetic bottle electron spectrometer (MBES) for high-energy electron spectroscopy. Our design features a 2 m long electron drift tube and electrostatic retardation...
3.
Muvva S, Liu Y, Chakraborty P, Nunes J, Attar A, Bhattacharyya S, et al.
Phys Chem Chem Phys . 2024 Dec; 27(1):471-480. PMID: 39652083
Conjugated diene molecules are highly reactive upon photoexcitation and can relax through multiple reaction channels that depend on the position of the double bonds and the degree of molecular rigidity....
4.
Unwin J, Razmus W, Allum F, Harries J, Kumagai Y, Nagaya K, et al.
ACS Phys Chem Au . 2024 Dec; 4(6):620-631. PMID: 39634650
Time-resolved extreme ultraviolet spectroscopy was used to investigate photodissociation within the iodobenzene C-band. The carbon-iodine bond of iodobenzene was photolyzed at 200 nm, and the ensuing dynamics were probed at...
5.
Bhattacharyya S, Wang E, Borne K, Chen K, Venkatachalam A, Lam H, et al.
J Phys Chem Lett . 2024 Dec; 15(49):12188-12196. PMID: 39622006
We present a time-resolved measurement of the photodissociation and photoisomerization dynamics of bromoform (CHBr) in the mono- and di-cationic states produced by near-infrared (NIR) strong-field ionization. The dissociation process is...
6.
Yoshikawa K, Kanno M, Xue H, Kishimoto N, Goto S, Ota F, et al.
Phys Chem Chem Phys . 2024 Sep; 26(38):25118-25130. PMID: 39311030
Imaging ultrafast atomic and molecular hydrogen motion with femtosecond time resolution is a challenge for ultrafast spectroscopy due to the low mass and small scattering cross section of the moving...
7.
Ding Y, Greenman L, Rolles D
Phys Chem Chem Phys . 2024 Aug; 26(34):22423-22432. PMID: 39140357
We present a highly efficient approach to directly and reliably simulate photodissociation followed by Coulomb explosion of methyl iodide. In order to achieve statistical reliability, more than 40 000 trajectories...
8.
Garg D, Chopra P, Lee J, Tikhonov D, Kumar S, Akcaalan O, et al.
Phys Chem Chem Phys . 2024 Jul; 26(30):20261-20272. PMID: 38958416
We present an investigation of the ultrafast dynamics of the polycyclic aromatic hydrocarbon fluorene initiated by an intense femtosecond near-infrared laser pulse (810 nm) and probed by a weak visible...
9.
Walmsley T, McManus J, Kumagai Y, Nagaya K, Harries J, Iwayama H, et al.
J Phys Chem A . 2024 May; 128(22):4548-4560. PMID: 38713032
We present results from a covariance ion imaging study, which employs extensive filtering, on the relationship between fragment momenta to gain deeper insight into photofragmentation dynamics. A new data analysis...
10.
Huang L, Bertram L, Ma L, Goff N, Crane S, Odate A, et al.
J Phys Chem A . 2024 May; 128(25):4992-4998. PMID: 38709555
The dynamics of cyclopentadiene (CP) following optical excitation at 243 nm was investigated by time-resolved pump-probe X-ray scattering using 16.2 keV X-rays at the Linac Coherent Light Source (LCLS). We...