Abstract
A flash photolysis system, using a pulsed laser as source, has been designed and used to study events having a duration of a few nanoseconds; an improvement over conventional flash techniques by a factor of a thousand. The apparatus incorporates both spectrographic and photoelectric monitoring techniques which are easily interchangeable and, apart from the laser itself, it is readily constructed from standard components. Its applications to the observation of the absorption spectra of excited singlet states, short-lived excited triplet states and chemical events in the nanosecond time region are described.
Keywords
Flash photolysisNanosecondFlash (photography)Excited stateLaserPhotoelectric effectSinglet stateOpticsMaterials sciencePhotochemistryPhotodissociationAbsorption spectroscopyChemistryAtomic physicsOptoelectronicsPhysicsKinetics
Affiliated Institutions
Related Publications
Interference in acetylene intersystem crossing acts as the molecular analog of Young's double-slit experiment
We report on an experimental approach that reveals crucial details of the composition of singlet-triplet mixed eigenstates in acetylene. Intersystem crossing in this prototypica...
Ultrafast Excited-State Dynamics of Rhenium(I) Photosensitizers [Re(Cl)(CO)_(3)(N,N)] and [Re(imidazole)(CO)_(3)(N,N)]^+: Diimine Effects
Femto- to picosecond excited-state dynamics of the complexes [Re(L)(CO)_(3)(N,N)]^n (N,N = bpy, phen, 4,7-dimethyl-phen (dmp); L = Cl, n = 0; L = imidazole, n = 1+) were invest...
Spin−Orbit Coupling and Intersystem Crossing in Conjugated Polymers: A Configuration Interaction Description
Configuration−interaction calculations are performed to describe the singlet and triplet excited states of oligothiophene and oligo(phenylene ethynylene) conjugated chains. Inte...
Optimization of high-sensitivity fluorescence detection
We present general expressions for the number of photons emitted by a fluorescent chromophore as a function of the intensity and the duration of illumination. The aim is to find...
REVERSIBLE, METASTABLE, ULTRAFAST PHOTOINDUCED ELECTRON TRANSFER FROM SEMICONDUCTING POLYMERS TO BUCKMINSTERFULLERENE AND IN THE CORRESPONDING DONOR/ACCEPTOR HETEROJUNCTIONS
The results of comprehensive studies of photoinduced electron transfer from semiconducting (conjugated) polymers to buckminsterfullerene are reviewed. Steady state and femtoseco...
Publication Info
- Year
- 1970
- Type
- article
- Volume
- 315
- Issue
- 1521
- Pages
- 163-184
- Citations
- 171
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
171
OpenAlex
Cite This
George Porter,
M. R. Topp
(1970).
Nanosecond flash photolysis.
Proceedings of the Royal Society of London A Mathematical and Physical Sciences
, 315
(1521)
, 163-184.
https://doi.org/10.1098/rspa.1970.0035
Identifiers
- DOI
- 10.1098/rspa.1970.0035