Synthesis and properties of novel second-order NLO chromophores containing pyrrole as an auxiliary electron donor

2008 ◽  
Vol 18 (15) ◽  
pp. 1756 ◽  
Author(s):  
Xiaohua Ma ◽  
Ran Liang ◽  
Fan Yang ◽  
Zhenhua Zhao ◽  
Aixin Zhang ◽  
...  
Keyword(s):  
Electron Donor ◽  
Second Order ◽  
Nlo Chromophores

Synthesis and properties of a new second-order NLO chromophore containing the benzo[b]furan moiety for electro-optical materials

RSC Advances ◽  
2014 ◽  
Vol 4 (63) ◽  
pp. 33312-33318 ◽  
Author(s):  
Maolin Zhang ◽  
Guowei Deng ◽  
Airui Zhang ◽  
Huajun Xu ◽  
Heyan Huang ◽  
...  
Keyword(s):  
Electron Donor ◽  
Optical Materials ◽  
Furan Ring ◽  
Second Order ◽  
Donor Group ◽  
Nlo Chromophores ◽  
Furan Moiety

We have designed and synthesized a new chromophore having a 1,1,7,7-tetramethyljulolidine fused furan ring as the electron donor group to systematically investigate the role of the benzo[b]furan ring in NLO chromophores.

scholarly journals Synthesis and characterization of novel second-order NLO-chromophores bearing pyrrole as an electron donor group

Tetrahedron ◽  
2012 ◽  
Vol 68 (39) ◽  
pp. 8147-8155 ◽  
Author(s):  
M. Cidália R. Castro ◽  
M. Belsley ◽  
A. Maurício C. Fonseca ◽  
M. Manuela M. Raposo
Keyword(s):  
Electron Donor ◽  
Second Order ◽  
Synthesis And Characterization ◽  
Donor Group ◽  
Nlo Chromophores

scholarly journals A Molecular Architectural Approach to Second-Order Nonlinear Optical Materials

1995 ◽  
Vol 392 ◽  
Author(s):  
Xiaoguang Yang ◽  
Duncan McBranch ◽  
Basil Swanson ◽  
Dequan Li
Keyword(s):  
Nonlinear Optical ◽  
Second Harmonic ◽  
Fused Silica ◽  
Second Order ◽  
Nonlinear Susceptibility ◽  
Design And Synthesis ◽  
Fundamental Wavelength ◽  
Assembled Monolayers ◽  
Methylene Groups ◽  
Nlo Chromophores

AbstractThe design and synthesis of a family of calix[4]arene-based nonlinear optical (NLO) chromophores are discussed. The calixarene chromophores are macrocyclic compounds consisting of four simple D-π-A units bridged by methylene groups. These molecules were synthesized such that four D-π-A units of the calix[4]arene were aligned along the same direction with the calixarene in a cone conformation. These nonlinear optical super-chromophores were subsequently fabricated into covalently bound self-assembled monolayers on the surfaces of fused silica and silicon. Spectroscopic second harmonic generation (SHG) measurements were carried out to determine the absolute value of the dominant element of the second-order nonlinear susceptibility, d33, and the average molecular alignment, ψ. We find a value of d33 = 60 pm/V at a fundamental wavelength of 890 nm, and ψ˜ 36° with respect to the surface normal.

Polyamic Acid Langmuir-Blodgett (LB) Films Containing A Stable Second-Order NLO Chromophore

1995 ◽  
Vol 413 ◽  
Author(s):  
D. W. Cheong ◽  
J. -I Chen ◽  
J. Kumar ◽  
S. K. Tripathy
Keyword(s):  
Nonlinear Coefficient ◽  
Polarized Light ◽  
Second Order ◽  
Polyimide Films ◽  
Polyamic Acid ◽  
Lb Films ◽  
Langmuir Blodgett ◽  
Number Of Layers ◽  
Absorption Correction ◽  
Nlo Chromophores

ABSTRACTNonlinear optical (NLO) LB films of polyamic acid containing a stable NLO dye were prepared and imidized either chemically or thermally. The optical properties and molecular orientation of these LB films were studied. From the absorption spectra, we infer that the derivative of the pnitroazobenzene chromophore covalently attatched to polyamic acid did not show significant aggregation. Quadratic dependence of SHG on the number of layers in polyamic acid films indicated the noncentrosymmetric organization of polar NLO chromophores. A second-order nonlinear coefficient (d33) of 23.4 pm/V was observed at 1064 nm after absorption correction. In polyimide films, SH intensity was dramatically reduced due to the collapse of the layered structure upon imidization process. In-plane isotropy of the LB films of polyamic acid and polyimide were lost upon irradiation of polarized light.

scholarly journals Triphenylamine-based allylidenemalononitrile chromophores: synthesis, and photophysical and second-order nonlinear optical properties

2018 ◽  
Vol 42 (18) ◽  
pp. 15052-15060 ◽  
Author(s):  
Emine Çatal ◽  
Ergin Keleş ◽  
Nurgül Seferoğlu ◽  
Sylvain Achelle ◽  
Alberto Barsella ◽  
...  
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Nlo Chromophores

A series of NLO chromophores based on a mono-, di- or tri-substituted triphenylamine core and allylidenemalononitrile fragments has been designed.

scholarly journals 5-Arylazo-2,2´-Bithiophenes: A Novel Promising Series of NLO Chromophores

2008 ◽  
Vol 587-588 ◽  
pp. 268-272 ◽  
Author(s):  
M. Manuela M. Raposo ◽  
Ana M. Ferreira ◽  
Michael Belsley ◽  
E. de Matos Gomes ◽  
J.C.V.P. Moura
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Solvatochromic Probes ◽  
Nlo Materials ◽  
Donor Acceptor ◽  
Uv Visible ◽  
Nlo Chromophores

The synthesis of 5-arylazo- substituted bithiophenes and their UV-visible, solvatochromic and nonlinear optical properties (NLO) are described. In agreement with the solvatochromic data and also with the second-order molecular NLO characterization, the new donor-acceptor systems could find application as suitable solvatochromic probes and also as new NLO materials.

New Second-Order NLO Chromophores Based on 3,3‘-Bipyridine: Tuning of Liquid Crystal and NLO Properties

2001 ◽  
Vol 13 (4) ◽  
pp. 1420-1427 ◽  
Author(s):  
Noëlla Lemaître ◽  
André-Jean Attias ◽  
Isabelle Ledoux ◽  
Joseph Zyss
Keyword(s):  
Liquid Crystal ◽  
Second Order ◽  
Nlo Properties ◽  
Nlo Chromophores
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