Results 61 to 70 of about 36,044 (198)

Ultrafast F2− photodissociation by intense laser pulses: a time-resolved fragment imaging study [PDF]

EPJ Web of Conferences, 2019
We present time-resolved coincidence imaging of F2− photodissociation by 400nm and intense 800nm ultrafast pulses. Coincidence fragment imaging reveals parallel and perpendicular single photon dissociation on 2Σg+ and 2πg states, and additional intense ...
Shahi Abhishek, Albeck Yishai, Strasser Daniel   +2 more
doaj   +1 more source

Photodissociation and the Morphology of HI in Galaxies

, 2004
Young massive stars produce Far-UV photons which dissociate the molecular gas on the surfaces of their parent molecular clouds. Of the many dissociation products which result from this ``back-reaction'', atomic hydrogen \HI is one of the easiest to ...
A Sternberg, AN Witt, BG Elmegreen, DA Smith, DJ Hollenbach, DJ Hollenbach, EJ Shaya, GB Field, J-M Deharveng, JE Pringle, JM Shull, L Vigroux, MG Wolfire, MG Wolfire, MJ Kaufman, O Laurent, R Braun, R Braun, RJ Allen, RJ Allen, RJ Allen, RJ Allen, RJ Allen, SC Madden, TP Stecher   +24 more
core   +2 more sources

Optimization of photobiomodulation therapy for spinal cord injury: A review

Photochemistry and Photobiology, EarlyView.
Photobiomodulation (PBM) therapy in the red and near‐infrared range can significantly modulate the secondary injury response and promote the reparative and regenerative potential of neural tissue after spinal cord injury (SCI). At present, due to the nature of delivery methods, the most effective dose and irradiance at the injury site to optimize ...
Isabella K. M. Drew, Alan R. Harvey, Vincent P. Wallace, Stuart I. Hodgetts   +3 more
wiley   +1 more source

Isolated spin polarized hydrogen atoms as targets for laser-induced polarized electron acceleration

Frontiers in Physics
High density Spin Polarized Hydrogen (SPH) atoms, which can be prepared using UV dissociation of hydro-halide molecules, can be attractive as potential targets for laser ionization/acceleration schemes aiming to create high energy and high current ...
Dimitris Sofikitis, Marios G. Stamatakis, Dimitrios G. Papazoglou, Dimitrios G. Papazoglou, T. Peter Rakitzis, T. Peter Rakitzis   +5 more
doaj   +1 more source

The Photodissociation and Ionization Fronts in M17-SW Localized with FIFI-LS on Board SOFIA

The Astrophysical Journal, 2023
To understand star formation rates, studying feedback mechanisms that regulate star formation is necessary. The radiation emitted by nascent massive stars play a significant role in feedback by photodissociating and ionizing their parental molecular ...
Randolf Klein, Alexander Reedy, Christian Fischer, Leslie W. Looney, Sebastian Colditz, Dario Fadda, Alexander G. G. M. Tielens, Willam D. Vacca   +7 more
doaj   +1 more source

High Resolution HST-STIS Spectra of CI and CO in the Beta Pictoris Circumstellar Disk

, 2000
High resolution FUV echelle spectra showing absorption features arising from CI and CO gas in the Beta Pictoris circumstellar (CS) disk were obtained on 1997 December 6 and 19 using the Space Telescope Imaging Spectrograph (STIS).
A. Jolly, A. M. Lagrange, A. Roberge, A. Vidal‐Madjar, Beust H., F. Rostas, Hibbert A., J. L. Lemaire, Jolly A., Lagrange A. M., Lecavelier des Etangs A., Lecavelier des Etangs A., P. D. Feldman, R. Ferlet, Tozzi G. P., Vidal-Madjar A.   +15 more
core   +2 more sources

Phospholipid Profiling Established by Structure‐Rich Fragments for Molecular Species Level Shotgun Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Accurate identification of phospholipid molecular species remains a major challenge in shotgun lipidomics because conventional tandem mass spectrometry typically resolves only one structural moiety at a time. This structural ambiguity limits confident lipid biomarker discovery and biological interpretation.
Rong Chen, Amber H. Jannasch, Bruce R. Cooper, Jonathan H. Shannahan, Christina R. Ferreira   +4 more
wiley   +1 more source

X-ray induced Coulomb explosion imaging of transient excited-state structural rearrangements in CS2

Communications Physics, 2023
Structural imaging of transient excited-state species is a key goal of molecular physics, promising to unveil rich information about the dynamics underpinning photochemical transformations.
James Unwin, Felix Allum, Mathew Britton, Ian Gabalski, Hubertus Bromberger, Mark Brouard, Philip H. Bucksbaum, Taran Driver, Nagitha Ekanayake, Diksha Garg, Eva Gougoula, David Heathcote, Andrew J. Howard, Paul Hockett, David M. P. Holland, Sonu Kumar, Chow-shing Lam, Jason W. L. Lee, Joseph McManus, Jochen Mikosch, Dennis Milesevic, Russell S. Minns, Christina C. Papadopoulou, Christopher Passow, Weronika O. Razmus, Anja Röder, Arnaud Rouzée, Michael Schuurman, Alcides Simao, Albert Stolow, Atia Tul-Noor, Claire Vallance, Tiffany Walmsley, Daniel Rolles, Benjamin Erk, Michael Burt, Ruaridh Forbes   +36 more
doaj   +1 more source

Molecular photodissociation

, 2011
Photodissociation is the dominant removal process of molecules in any region exposed to intense ultraviolet (UV) radiation. This includes diffuse and translucent interstellar clouds, dense photon-dominated regions, high velocity shocks, the surface layers of protoplanetary disks, and cometary and exoplanetary atmospheres.
van Dishoeck, Ewine F., Visser, Ruud
openaire   +2 more sources

Quantum Control of the Dynamical Behavior of Resonance States in Small Organic Molecules With Intense Fields

Small Structures, Volume 7, Issue 4, April 2026.
A new quantum control scheme is suggested to modify the final fragment distribution produced upon decay of a resonance state of CH3. The scheme applies a moderately intense control field that in the Floquet representation causes a shift of the ground state upwards, producing new nonadiabatic couplings with the excited states that reshape the potential ...
Alberto García‐Vela
wiley   +1 more source