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Table-top all-attosecond transient absorption spectroscopy [PDF]

open access: yesNature Communications
Attosecond transient absorption spectroscopy (ATAS) has emerged as a powerful technique within the field of attosecond science, combining extremely high temporal and excellent spectral resolution.
Mikhail Volkov   +6 more
doaj   +2 more sources

A guide to transient absorption spectroscopy for porous crystalline materials in photocatalysis [PDF]

open access: yesNature Communications
Transient absorption spectroscopy has become an increasingly accessible method for probing the fundamental mechanisms of photocatalytic reaction and has provided important mechanistic insights across a wide range of systems.
Alexander J. King   +3 more
doaj   +2 more sources

Impact of Surface Trap States on Electron and Energy Transfer in CdSe Quantum Dots Studied by Femtosecond Transient Absorption Spectroscopy [PDF]

open access: yesNanomaterials, 2023
The presence of surface trap states (STSs) is one of the key factors to affect the electronic and optical properties of quantum dots (QDs), however, the exact mechanism of how STSs influence QDs remains unclear. Herein, we demonstrated the impact of STSs
Hongbin Dou   +5 more
doaj   +2 more sources

Ultrafast Studies of ZrTe3 by Transient Absorption Spectrometer. [PDF]

open access: yesMaterials (Basel), 2022
Two-dimensional (2D) tri-TMDCs carrier dynamics provide a platform for studying excitons through Ultrafast Pump-Probe Transient Absorption Spectroscopy. Here we studied the ZrTe3 nanosheets (NTs) exciton dynamics by transient absorption (TA) spectrometer.
Ahmed S   +5 more
europepmc   +3 more sources

Comparison of Chlorophyll and Bacteriochlorophyll Ultrafast Transient Absorption Spectra and Kinetics [PDF]

open access: yesMolecules
Oxygenic and anoxygenic photosynthesis are initiated through the absorption of light by chlorophyll and bacteriochlorophyll photosynthetic pigments, respectively, which function as light-harvesting (antenna) and redox pigments on the photosynthetic ...
Arjun Krishnamoorthi   +3 more
doaj   +2 more sources

Direct determination of multiphoton absorption cross-sections by transient absorption spectroscopy. [PDF]

open access: yesChem Sci
We present a reliable transient absorption method to directly measure photon absorption cross-sections, advancing photon-harvesting research.
He H, Lim JWM, Feng M, Xing Z, Sum TC.
europepmc   +3 more sources

Effect of reabsorption of fluorescence on transient absorption measurements

open access: yesSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2019
Elimination of fluorescence reabsorption effects is necessary to obtain reliable kinetic data in fluorescence spectroscopy. This effect must also be considered in transient absorption spectroscopy. We devised two methods to achieve this goal. The first was use of a thin optical cell (
Tatsuo Nakagawa   +2 more
exaly   +4 more sources

Cavity-enhanced detection of transient absorption signals [PDF]

open access: yesEPJ Web of Conferences, 2020
We present a simple, high-duty-cycle, cavity-enhanced optical absorption measurement technique based on delay-limited Pound-Drever-Hall (PDH) sideband locking.
Rodrigues-Machado Fernanda C.   +5 more
doaj   +1 more source

Multiphoton Resonance in Attosecond Transient Absorption

open access: yesPhotonics, 2022
We present the theory and simulation of attosecond transient absorption in helium atoms under the single-active-electron approximation. This study investigates the attosecond dynamics of intrinsic atomic states that interact with a field comprising ...
Jinxing Xue   +3 more
doaj   +1 more source

Photophysical Properties of Some Naphthalimide Derivatives

open access: yesEngineering Proceedings, 2022
Naphthalimide derivatives possess many interesting properties such as strong emission, high quantum efficiency, good photostability, thermal stability, etc.
Radu Ionut Tigoianu   +4 more
doaj   +1 more source

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