Results 31 to 40 of about 1,613,986 (294)

Adaptive noise canceling for transient absorption microscopy [PDF]

open access: yesJournal of Biomedical Optics, 2020
Ultrafast fiber lasers are an attractive alternative to bulk lasers for nonlinear optical microscopy for their compactness and low cost. The high relative intensity noise (RIN) of these lasers poses a challenge for pump-probe measurements such as transient absorption and stimulated Raman scattering, along with modalities that provide label-free ...
Wang, Erkang   +2 more
openaire   +2 more sources

Dynamic Model for Small-Scale Ammonia-Water Absorption Chiller [PDF]

open access: yes, 2012
Optimization of the performance of absorption systems during transient operations such as start-up and shut-down to minimize lifetime costs is particularly important for small-capacity chillers and heat pumps.
Garimella, Srinivas   +3 more
core   +1 more source

Irradiation of ZnPPIX Complexed with Bovine β-Lactoglobulin Causes Chemical Modifications and Conformational Changes of the Protein

open access: yesPhyschem, 2023
Photosensitization of proteins mediated by chromophores is a mechanism commonly employed by nature and mimicked in a broad array of laboratory research and applications.
Abdullah Albalawi   +5 more
doaj   +1 more source

Direct Mapping of Curve-Crossing Dynamics in IBr by Attosecond Transient Absorption Spectroscopy [PDF]

open access: yes, 2019
The electronic character of photoexcited molecules can abruptly change at avoided crossings and conical intersections. Here, we report direct mapping of the coupled interplay between electrons and nuclei in a prototype molecule, iodine monobromide (IBr)
Daniel, Neumark   +4 more
core   +1 more source

Dynamic Microscopy Study of Ultrafast Charge Transfer in a Hybrid P3HT/Hyperbranched CdSe Nanoparticle Blend for Photovoltaics [PDF]

open access: yes, 2012
We present a spectroscopic investigation on a new hyperbranched cadmium selenide nanocrystals (CdSe NC)/poly(3-hexylthiophene) (P3HT) blend, a potentially good active component in hybrid photovoltaics. Combined ultrafast transient absorption spectroscopy
Polli, Dario   +20 more
core   +1 more source

Light-Induced Effects in Amorphous Chalcogenide Glasses: Femtoseconds to Seconds

open access: yesPhysics, 2021
Amorphous chalcogenide glasses are intrinsically metastable, highly photosensitive, and therefore exhibit numerous light-induced effects upon bandgap and sub-bandgap illumination.
Pritam Khan, K. V. Adarsh
doaj   +1 more source

Interpretations of High-Order Transient Absorption Spectroscopies

open access: yesThe Journal of Physical Chemistry Letters, 2023
15 pages, 7 ...
Peter A. Rose, Jacob J. Krich
openaire   +3 more sources

Photophysical Studies of Poly(3,4-Ethylenedioxythiophene/Cucurbit[7]uril) Polypseudorotaxane and Polyrotaxane by Transient Absorption and Time-Resolved Fluorescence Spectroscopy

open access: yesEngineering Proceedings, 2022
The UV-Vis absorption, fluorescence, and phosphorescence spectra of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril), polypseudorotaxane (1), and polyrotaxane (2) in water and acetonitrile solutions were investigated. To achieve a deeper insight into the
Radu Ionut Tigoianu, Aurica Farcas
doaj   +1 more source

The Role of Polaronic States on the Spin Dynamics in Solution‐Processed Two‐Dimensional Layered Perovskite with Different Layer Thickness

open access: yesAdvanced Science, 2023
2D lead halide perovskites (LHPs) show strong excitonic and spin‐orbit coupling effects, generating a facile spin injection. Besides, they possess a polaron character due to the soft crystal lattice, which can prolong the spin lifetime, making them ...
Mu‐Sen Song   +5 more
doaj   +1 more source

Influence of Al2O3 Overlayers on Intermolecular Interactions between Metal Oxide Bound Molecules

open access: yesMolecules, 2023
Intermolecular interactions on inorganic substrates can have a critical impact on the electrochemical and photophysical properties of the materials and subsequent performance in hybrid electronics.
Erica S. Knorr   +8 more
doaj   +1 more source

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