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 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

ADVANCES IN MOLECULAR ENGINEERING FOR QUADRATIC NONLINEAR OPTICS

1994 ◽  
pp. 129-200 ◽  
Author(s):  
Joseph Zyss ◽  
Isabelle Ledoux ◽  
Jean-François Nicoud
Keyword(s):  
Nonlinear Optics ◽  
Molecular Engineering

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.

Multipolar Symmetry Patterns in Molecular Nonlinear Optics

1998 ◽  
Vol 07 (03) ◽  
pp. 397-439 ◽  
Author(s):  
J. Zyss ◽  
S. Brasselet
Keyword(s):  
Nonlinear Optics ◽  
Three Dimensional ◽  
Molecular Engineering ◽  
Quantum Model ◽  
One Dimensional ◽  
Irreducible Components ◽  
Level Model ◽  
Linear Material ◽  
Two Level Model ◽  
Photoinduced Processes

Organic materials for quadratic nonlinear optics generally follow the basic pattern of strongly dipolar quasi one-dimensional intramolecular charge transfer molecules organized in macroscopic crystalline or statistical polar lattices. This restriction has been lifted by the introduction of the much broader class of multipolar materials whereby efficient two- and three-dimensional molecules can be fruitfully exploited in self assembled or externally engineered multipolar macroscopic structures. At the molecular level, polarized harmonic scattering permits to evaluate the invariant irreducible components of the molecular quadratic tensor. Its anisotropy and dispersion can be accounted for by a three-quantum model in agreement with linear spectroscopy on poled samples, whereas the validity of the two-level model is restricted to one-dimensional systems. Permanent macroscopic multipolar organization can be implemented by purely optical photoinduced processes. Adequate choice of the polarization of "write" beams permits to imprint any desired symmetry pattern onto the (non)linear material. Photonic engineering thus complements and considerably broadens the more traditional scope of molecular engineering.

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.

Comparative nonlinear optics and optical limiting properties of metallophthalocyanines

2019 ◽  
Vol 486 ◽  
pp. 345-351
Author(s):  
Zekeriya Biyiklioglu ◽  
Tayfun Arslan ◽  
Fadheela A. Alawainati ◽  
Hacene Manaa ◽  
Adnan Jaffar ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Optical Limiting
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