Photobleaching of organic fluorophores: quantitative characterization, mechanisms, protection

AP Demchenko - Methods and applications in fluorescence, 2020 - iopscience.iop.org
Photochemical stability is one of the most important parameters that determine the
usefulness of organic dyes in different applications. This Review addresses key factors that …

Design, photophysical properties, and applications of fluorene-based fluorophores in two-photon fluorescence bioimaging: A review

J Shaya, PR Corridon, B Al-Omari, A Aoudi… - … of Photochemistry and …, 2022 - Elsevier
Two-photon fluorescence microscopy (2PFM) emerged as a powerful alternative to
conventional one-photon microscopy. 2PFM typically uses two near-infrared (NIR) photons …

Effect of π-conjugated linkage on photophysical properties: Acetylene linker as the better connection group for highly solvatochromic probes

A Tigreros, A Ortiz, B Insuasty - Dyes and Pigments, 2014 - Elsevier
Fluorophores based in triphenylamine and fluorene (1–3) were synthetized and the effects
of π-conjugated linkers (vinyl, ethynyl and 1, 3-diynyl) on the solvatochromic properties were …

Thiophene-modified donor-π-acceptor compound with an enhanced two-photon absorption response: An ultrafast dynamics study

X Meng, L Hong, Y Jiang, D Liu, J Hua, Y Wang - Journal of Luminescence, 2023 - Elsevier
Comparative investigations were performed to determine how thiophene group
modifications affect the two-photon absorption properties of a donor-π-acceptor compound …

Superfluorescent Squaraine with Efficient Two‐Photon Absorption and High Photostability

KD Belfield, MV Bondar, HS Haniff… - …, 2013 - Wiley Online Library
The synthesis, linear photophysical, two‐photon absorption (2PA), femtosecond transient
absorption, and superfluorescence properties of a new symmetrical squaraine derivative (1) …

Two‐Photon Absorption and Time‐Resolved Stimulated Emission Depletion Spectroscopy of a New Fluorenyl Derivative

KD Belfield, MV Bondar, AR Morales, X Yue… - …, 2012 - Wiley Online Library
The synthesis, comprehensive linear photophysical characterization, two‐photon absorption
(2PA), steady‐state and time‐resolved stimulated emission depletion properties of a new …

Electronic nature of nonlinear optical properties of a symmetrical two-photon absorbing fluorene derivative: Experimental study and theoretical modeling

SA Kurhuzenkau, MY Colon Gomez… - The Journal of …, 2018 - ACS Publications
A comprehensive experimental and theoretical study of linear photophysical properties,
such as excited-state relaxation, two-photon absorption, and stimulated emission spectra of …

Two-photon absorption and optical limiting of a fluorenyl-based chromophore with femtosecond laser pulse

H Ma, J Leng, M Liu, L Zhao, Y Jiao - Optics Communications, 2015 - Elsevier
Abstract Two-photon absorption (2PA) and optical limiting (OL) properties of a symmetrical
fluorene derivative 9, 9-dimethyl-2, 7-bis ((E)-4-nitrostyryl)-9H-fluorene (F) with femtosecond …

Cellular deoxyribonucleic-acid probes of two-photon-excited fluorescent quinolinium-substituted carbazole

Y Feng, S Chi, Y Zhao, Y Zhang, Y Wu - Analyst, 2019 - pubs.rsc.org
We report three new types of two-photon-absorption compounds, which contain a carbazole
center core linked to two quinolinium units. Their action two-photon absorption cross …

Impact of electron acceptor on three-photon absorption cross-section of the fluorene derivatives

J Liu, G Li, Y Wang - The Journal of Physical Chemistry A, 2012 - ACS Publications
Small three-photon absorption (3PA) cross-section values of present nonlinear organic
molecules limit their practical applications. Although electron donors and electron acceptors …