Optical limiting in the visible range: molecular engineering around N4,N4′-bis(4-methoxyphenyl)-N4,N4′-diphenyl-4,4′-diaminobiphenyl

2003 ◽  
Vol 13 (9) ◽  
pp. 2157-2163 ◽  
Author(s):  
Rémi Anémian ◽  
Yannick Morel ◽  
Patrice L. Baldeck ◽  
Barbara Paci ◽  
Kevin Kretsch ◽  
...  
Keyword(s):  
Optical Limiting ◽  
Molecular Engineering ◽  
Visible Range

scholarly journals Molecular Engineering of Nonplanar Porphyrin and Carbon Nanotube Assemblies: A Linear and Nonlinear Spectroscopic and Modeling Study

2011 ◽  
Vol 2011 ◽  
pp. 1-12 ◽  
Author(s):  
Éimhín M. Ní Mhuircheartaigh ◽  
Silvia Giordani ◽  
Donal MacKernan ◽  
Sharon M. King ◽  
David Rickard ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Molecular Conformation ◽  
Noncovalent Interactions ◽  
Optical Limiting ◽  
Convincing Evidence ◽  
Molecular Engineering ◽  
Photoluminescence Quenching ◽  
Limiting Behavior ◽  
Nanotube Composites ◽  
Linear And Nonlinear

The importance of molecular conformation to the nature and strength of noncovalent interactions existing between a series of increasingly nonplanar tetraphenylporphyrin (TPP) derivatives and carbon nanotubes was systematically investigated experimentally in solution using a range of linear and nonlinear optical techniques. Additional complementary molecular dynamics studies were found to support the experimental observations. Convincing evidence of binding between single walled nanotubes (SWNTs) and some of these porphyrins was discovered, and a nonplanar macrocycle conformation was found to increase the likelihood of noncovalent binding onto nanotubes. Nonlinear optical studies showed that the optical limiting behavior of the TPP derivatives deteriorated with increasing porphyrin nonplanarity, but that formation of nanotube composites dramatically improved the optical limiting properties of all molecules studied. It was also found that the significant photoluminescence quenching behavior reported in the literature for such porphyrin/SWNT composites is at least partly caused by photoluminescence and excitation self-absorption and is, therefore, an artifact of the system.

Approaches for Optimizing and Tuning the Optical Limiting Response of Phthalocyanine Complexes

1994 ◽  
Vol 374 ◽  
Author(s):  
J. W. Perry ◽  
K. Mansour ◽  
S. R. Marder ◽  
C.-T. Chen ◽  
P. Miles ◽  
...  
Keyword(s):  
High Performance ◽  
Heavy Atom ◽  
Optical Limiting ◽  
Molecular Engineering ◽  
Homogeneous Distribution ◽  
Experimental Demonstration ◽  
New Materials ◽  
Order Of Magnitude ◽  
Magnitude Increase ◽  
Excited State Population

AbstractRecent progress on the use of molecular engineering approaches for the enhancement and spectral tuning of the optical limiting responses of phthalocyanine complexes is presented. Examples are given involving the use of the heavy-atom approach to enhance the limiting response of naphthalocyanines and of donor substitution of naphthalocyanines to red shift the optical limiting response, as demonstrated for indium and tin octabutoxynaphthalocyanines. These approaches have led to new materials for optical limiting with potential for high performance. An experimental demonstration of the “bottleneck” limiter concept, in which the optical-limiting material is distributed nonhomogeneously to permit strong pumping of excited-state population throughout the interaction region, is presented and shows an order-of-magnitude increase in pulse suppression compared to a homogeneous distribution, without an increase in linear absorbance.

Molecular engineering of organic materials for nonlinear absorption in the visible range: the excited states of tetraphenyl-diamine derivatives

2000 ◽  
Vol 2 (4) ◽  
pp. 268-271 ◽  
Author(s):  
Barbara Paci ◽  
Jean-Michel Nunzi ◽  
Rémi Anémian ◽  
Chantal Andraud ◽  
André Collet ◽  
...  
Keyword(s):  
Excited States ◽  
Nonlinear Absorption ◽  
Organic Materials ◽  
Molecular Engineering ◽  
Visible Range

Wavelength Dispersion of Optical Power Limiting in Stilbene3 Analyzed within a Three Level Model

1999 ◽  
Vol 597 ◽  
Author(s):  
P-A. Chollet ◽  
A. Somin ◽  
B. Paci ◽  
V. Hully ◽  
J-M. Nunzi ◽  
...  
Keyword(s):  
Excited State Absorption ◽  
Optical Power ◽  
Laser Pulses ◽  
Optical Limiting ◽  
Photon Absorption ◽  
Visible Range ◽  
Nanosecond Laser ◽  
Nonlinear Transmission ◽  
Two Photon ◽  
Level Model

AbstractNonlinear transmission in a dye (stilbene3) exhibiting two-photon absorption (TPA) has been studied has a function of wavelength, in the visible range using nanosecond laser pulses. The results have been analyzed within a three level model: the first excited one is populated by TPA and is excited toward an upper level (excited state absorption, ESA). The TPA and ESA spectra obtained by optical limiting (δ∼10-46 cm4s photon-1molecule-1; δ∼ 10-16 cm2) are in good agreement with those determined by two-photon fluorescence and Kerr ellipsometry. Thus, nonlinear transmission appears as a useful technique to estimate the TPA and ESA contributions in optical limiting.

Molecular Engineering of Peripherally And Axially Modified Phthalocyanines for Optical Limiting and Nonlinear Optics

2003 ◽  
Vol 15 (1) ◽  
pp. 19-32 ◽  
Author(s):  
S.M. O’Flaherty ◽  
S.V. Hold ◽  
M.J. Cook ◽  
T. Torres ◽  
Y. Chen ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Optical Limiting ◽  
Molecular Engineering

Optical limiting behavior of bismuth oxide-based glass in the visible range

2006 ◽  
Vol 89 (21) ◽  
pp. 211912 ◽  
Author(s):  
T. R. Oliveira ◽  
L. de S. Menezes ◽  
E. L. Falcão-Filho ◽  
A. S. L. Gomes ◽  
Cid B. de Araújo ◽  
...  
Keyword(s):  
Bismuth Oxide ◽  
Optical Limiting ◽  
Visible Range ◽  
Limiting Behavior

scholarly journals Synthesis, Fluorescence and Nonlinear Optical Properties of Phthalocyanine Derivatives in the Continuous-wave and Pulsed Excitation Regimes-=SUP=-*-=/SUP=-

2021 ◽  
Vol 129 (5) ◽  
pp. 626
Author(s):  
Hacene Manaa ◽  
Devrim Attila ◽  
Ayse Gul Gurek ◽  
Sughra Mohamed ◽  
Fadheela A. Alawainati ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Pulsed Laser ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Visible Range ◽  
Third Order ◽  
Nonlinear Properties ◽  
532 Nm

In this work, the photo-physical properties of seven different phthalocyanine derivatives are studied, with a focus on their transparency spectral range. Two compounds among them are recently synthesised. The investigations include synthesis, photoluminescence, absorptive and refractive nonlinear properties, and optical limiting performances. The compounds are found to be emitting interesting broad fluorescence bands in the visible range. The nonlinear optical properties are investigated with the help of Z-scan technique, with both a continuous laser at 488, 514.5 and 632.8 nm, and with a pulsed laser at 532 nm. The sign and the magnitude of the nonlinear refractive index, third-order susceptibility, and nonlinear absorption coefficient have been evaluated in the seven compounds. The optical limiting performance of each compound was also evaluated in the continuous and pulsed laser excitation regimes. Keywords:

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