Results 41 to 50 of about 64,474 (291)

Jitter-correction for IR/UV-XUV pump-probe experiments at the FLASH free-electron laser

open access: yesNew Journal of Physics, 2017
In pump-probe experiments employing a free-electron laser (FEL) in combination with a synchronized optical femtosecond laser, the arrival-time jitter between the FEL pulse and the optical laser pulse often severely limits the temporal resolution that can
Evgeny Savelyev   +35 more
doaj   +1 more source

Quantum state-to-state vacuum ultraviolet photodissociation dynamics of small molecules

open access: yesChinese Journal of Chemical Physics, 2019
The present review focused on selected, recent experimental progress of photodissociation dynamics of small molecules covering the vacuum ultraviolet (VUV) range from 6 eV to 20 eV. These advancements come about due to the available laser based VUV light
Hong Gao, C. Ng
semanticscholar   +1 more source

Dual Circularly Polarized Luminescence from Chiral Boron‐Embedded Polycyclic Aromatic Hydrocarbons

open access: yesAngewandte Chemie, EarlyView.
Boron‐embedded polycyclic aromatic hydrocarbons featuring an asymmetric boron center coordinated by a proximal P═O group were synthesized. Anthracene‐fused boracyclic derivatives show dual circularly polarized luminescence (CPL) arising from excited‐state P═O⋯B dissociation, which converts point chirality into C−B axial chirality.
Tatsuya Mori   +6 more
wiley   +2 more sources

Selective photodissociation of tailored molecular tags as a tool for quantum optics

open access: yesBeilstein Journal of Nanotechnology, 2017
Recent progress in synthetic chemistry and molecular quantum optics has enabled demonstrations of the quantum mechanical wave–particle duality for complex particles, with masses exceeding 10 kDa.
Ugur Sezer   +7 more
doaj   +1 more source

TD-DFT Insight into Photodissociation of Co-C Bond in Coenzyme B12

open access: yesFrontiers in Chemistry, 2014
Coenzyme B12 (AdoCbl) is one of the most biologically active forms of vitamin B12, and continues to be a topic of active research interest. The mechanism of Co-C bond cleavage in AdoCbl, and the corresponding enzymatic reactions are however, not well ...
Pawel Michal Kozlowski   +4 more
doaj   +1 more source

Molecular ion trap-depletion spectroscopy of BaCl$^+$

open access: yes, 2011
We demonstrate a simple technique for molecular ion spectroscopy. BaCl$^+$ molecular ions are trapped in a linear Paul trap in the presence of a room-temperature He buffer gas and photodissociated by driving an electronic transition from the ground X$^1 ...
Chen, Kuang   +6 more
core   +1 more source

C60IN PHOTODISSOCIATION REGIONS [PDF]

open access: yesThe Astrophysical Journal, 2014
Recent studies have confirmed the presence of buckminsterfullerene (C$_{60}$) in different interstellar and circumstellar environments. However, several aspects regarding C$_{60}$ in space are not well understood yet, such as the formation and excitation processes, and the connection between C$_{60}$ and other carbonaceous compounds in the interstellar
Castellanos   +5 more
openaire   +2 more sources

The photodissociation of CO in circumstellar envelopes

open access: yes, 2017
Carbon monoxide is the most abundant molecule after H$_2$ and is important for chemistry in circumstellar envelopes around late-type stars. The size of the envelope is important when modelling low-J transition lines and deriving mass-loss rates from such
Groenewegen, M. A. T.
core   +1 more source

Roles of UV light strength and auxiliary electric field in the photocatalytic degradation effect of organic contaminant

open access: yesHigh Voltage, 2019
The accumulation of contaminants on the electrical devices could adversely affect the operation. The present work used photocatalytic functional material to coat on the surface of the electrical devices to prevent the influence of organic contamination ...
Lin YaoYu   +4 more
doaj   +1 more source

The effects of nitric oxide cooling and the photodissociation of molecular oxygen on the thermosphere/ionosphere system over the Argentine Islands [PDF]

open access: yesAnnales Geophysicae, 1997
In the past the global, fully coupled, time-dependent mathematical model of the Earth's thermosphere/ionosphere/plasmasphere (CTIP) has been unable to reproduce accurately observed values of the maximum plasma frequency, foF2, at extreme geophysical ...
G. D. Wells   +4 more
doaj   +1 more source

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