Fluorescence phenomena in amyloid and amyloidogenic bionanostructures

B Apter, N Lapshina, H Barhom, B Fainberg… - Crystals, 2020 - mdpi.com
Nanoscale optical labeling is an advanced bioimaging tool. It is mostly based on
fluorescence (FL) phenomena and enables the visualization of single biocells, bacteria …

Chirped Laser Pulse Control of Vibronic Wavepackets and Energy Transfer in Phycocyanin 645

CP Oberg, LC Spangler, DF Coker… - The Journal of Physical …, 2024 - ACS Publications
Photosynthetic organisms use light-harvesting complexes to increase the spectrum of light
that they absorb from solar photons. Recent ultrafast spectroscopic studies have revealed …

Light-induced current in molecular tunneling junctions excited with intense shaped pulses

BD Fainberg, M Jouravlev, A Nitzan - Physical Review B—Condensed Matter …, 2007 - APS
A theory for light-induced current by strong optical pulses in molecular tunneling junctions is
described. We consider a molecular bridge represented by its highest occupied and lowest …

Light-induced “plasmonic” properties of organic materials: Surface polaritons and switching waves in bistable organic thin films

BD Fainberg, NN Rosanov, NA Veretenov - Applied Physics Letters, 2017 - pubs.aip.org
Purely organic materials with negative and near-zero dielectric permittivity can be easily
fabricated, and the propagation of surface polaritons at the material/air interface was …

Long‐Range Fluorescence Propagation in Amyloidogenic β‐Sheet Films and Fibers

B Apter, B Fainberg, A Handelman… - Advanced Optical …, 2020 - Wiley Online Library
Newly developed PEGylated phenylalanine peptide derivatives (PEG‐F6) can self‐
assemble to form hybrid multifunctional nanostructures of homogeneous thin polymer films …

Solvation stokes-shift dynamics studied by chirped femtosecond laser pulses

A Konar, VV Lozovoy, M Dantus - The Journal of Physical …, 2012 - ACS Publications
The early optical dynamic response, resulting population, and electronic coherence are
investigated experimentally and modeled theoretically for IR144 in solution. The …

Controlling S2 Population in Cyanine Dyes Using Shaped Femtosecond Pulses

M Nairat, A Konar, VV Lozovoy, WF Beck… - The Journal of …, 2016 - ACS Publications
Fast population transfer from higher to lower excited states occurs via internal conversion
(IC) and is the basis of Kasha's rule, which states that spontaneous emission takes place …

Using time-dependent rate equations to describe chirped pulse excitation in condensed phases

CJ Bardeen, J Cao, FLH Brown, KR Wilson - Chemical Physics Letters, 1999 - Elsevier
A time-dependent rate equation formalism is developed to describe high-intensity excitation
of molecules in condensed phases using broadband laser pulses. When electronic and …

Coherent population transfer in molecules coupled with a dissipative environment by an intense ultrashort chirped pulse

BD Fainberg, VA Gorbunov - The Journal of chemical physics, 2002 - pubs.aip.org
We have studied the intense chirped pulse excitation of a molecule coupled with a
dissipative environment taking into account electronic coherence effects. We considered a …

Chirped pulse excitation in condensed phases involving intramolecular modes studied by double-sided Feynman diagrams for fast optical dephasing

BD Fainberg, V Narbaev - The Journal of Chemical Physics, 2000 - pubs.aip.org
The effect of the quantum intramolecular modes on the chirped pulse excitation in
condensed phase has been studied. Nonperturbative equations for the populations of …