The control of luminous radiation has extremely important implications for modern and future
technologies as well as in medicine. In this Review, we detail chemical structures and their …

The preparation of (octaaryltetraazaporphyrinato) indium (III) chlorides [aryl= phenyl (5a), p-
tert-butylphenyl (6a), p-(trifluoromethyl) phenyl (7a), m-(trifluoromethyl) phenyl (8a)] and their …

This work presents a complete investigation on the excited-state absorption of a new
porphyrin derivative, the free-base 5, 10, 15, 20-tetrakis (1, 3-dimethylimidazolium-2-yl) …

The study of excited state properties of chlorophyll a is a subject of foremost interest, given
that it plays important roles in biological process and has also been proposed for …

Photophysical processes in multicomponent solutions composed by natural pigments,
extracted from Caesalpinia echinata (Brazil-wood) leaves, are investigated. Beacuse of the …

Nonlinear absorption dynamics of Zn2+, Cu2+, and Ni2+ tetrapyridyl porphyrins in
chloroform/methanol solutions were investigated at 532 nm with the Z-scan technique …

We present a convenient way to obtain an optical power limiting behavior in a quantum dot
molecule system, induced by an interdot tunneling. Also, the effect of system parameters on …

In this work, we studied the nonlinear absorption dynamics of indocyanine green (ICG) in
dimethyl sulfoxide (DMSO) at 532nm. Single pulse and pulse train Z-scan techniques were …

The third-order nonlinear optical properties of two solutions of gold nanoparticles protected
by carbazolyldiacetylene derivatives were investigated using the Z-scan technique. Both …

Quantum fluctuations in the intensity of an optical probe is noise which limits measurement
precision in absorption spectroscopy. Increased probe power can offer greater precision; …