Results 61 to 70 of about 5,819 (230)

Selective gating to vibrational modes through resonant X-ray scattering

open access: yesNature Communications, 2017
Investigating dynamics of polyatomic molecules is difficult as their potential energy surfaces are multidimensional due to coupled degrees of freedom. Here the authors demonstrate a spatial selective gating technique to probe the different vibrational ...
Rafael C. Couto   +14 more
doaj   +1 more source

Polyatomic molecules as quantum sensors for fundamental physics [PDF]

open access: yes, 2020
Precision measurements in molecules have advanced rapidly in recent years through developments in techniques to cool, trap, and control. The complexity of molecules makes them a challenge to study, but also offers opportunities for enhanced sensitivity ...
Hutzler, Nicholas R.
core  

Mixing of the vibrational angular momentum components of multiply degenerate vibronic states of benzene by vibrational l-type resonance [PDF]

open access: yes, 1991
The rotationally resolved spectra of the 6011002 and 6011602 vibronic transitions of benzene at low rotational temperat reported and analyzed in detail.
Eberhard Riedle   +3 more
core   +1 more source

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

open access: yesLaser &Photonics Reviews, Volume 20, Issue 10, 22 May 2026.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber   +6 more
wiley   +1 more source

Resonance in Interacting Induced-Dipole Polarizing Force Fields: Application to Force-Field Derivatives

open access: yesAlgorithms, 2009
The Silberstein model of the molecular polarizability of diatomic molecules, generalized by Applequist et al. for polyatomic molecules, is analyzed. The atoms are regarded as isotropically polarizable points located at their nuclei, interacting via the ...
Francisco Torrens, Gloria Castellano
doaj   +1 more source

UV-Driven Harmonic Generation for Time-Resolved Photoelectron Spectroscopy of Polyatomic Molecules

open access: yesApplied Sciences, 2018
A single-order harmonic pulse in the vacuum-ultraviolet (VUV) is highly desirable for time-resolved photoelectron spectroscopy (TRPES) of polyatomic molecules.
Shunsuke Adachi, Toshinori Suzuki
doaj   +1 more source

Specificity of scattering of ultrashort laser pulses by molecules with polyatomic structure

open access: yesScientific Reports, 2022
The theory of scattering of ultrashort laser pulses (USP) is the basis of diffraction analysis of matter using modern USP sources. At present, the peculiarities of interaction of USP with complex structures are not well developed.
D. N. Makarov   +2 more
doaj   +1 more source

Quantum Control of Trapped Polyatomic Molecules for eEDM Searches

open access: yes, 2023
Ultracold polyatomic molecules are promising candidates for experiments in quantum science, quantum sensing, ultracold chemistry, and precision measurements of physics beyond the Standard Model.
Hutzler, Nicholas R.   +6 more
core   +1 more source

Cold collisions of complex polyatomic molecules [PDF]

open access: yesThe Journal of Chemical Physics, 2012
We introduce a method for classical trajectory calculations to simulate collisions between atoms and large rigid asymmetric-top molecules. We investigate the formation of molecule-helium complexes in buffer-gas cooling experiments at a temperature of 6.5 K for molecules as large as naphthalene.
Li, Zhiying, Heller, Eric J.
openaire   +3 more sources

Three Methods to Identify and Visualize Nonuniform Changes in Interatomic Interactions: Second‐Difference Analysis, Anharmonicity Inversion, and Distance‐Dependent NMR Absolute Shieldings

open access: yesInternational Journal of Quantum Chemistry, Volume 126, Issue 7, April 5, 2026.
Three complementary approaches have been developed to visualize how vibrational excitation alters the potential energy surface of a diatomic electronic state, aiding in the interpretation of these changes and in the elucidation of the underlying interatomic interactions.
Ilya G. Shenderovich, Gleb S. Denisov
wiley   +1 more source

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