Greatly enhanced second-order nonlinear optical susceptibilities in donor-acceptor organic molecules

1987 ◽  
Vol 109 (21) ◽  
pp. 6561-6563 ◽  
Author(s):  
H. E. Katz ◽  
K. D. Singer ◽  
J. E. Sohn ◽  
C. W. Dirk ◽  
L. A. King ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Organic Molecules ◽  
Second Order ◽  
Donor Acceptor

ChemInform Abstract: Greatly Enhanced Second-Order Nonlinear Optical Susceptibilities in Donor-Acceptor Organic Molecules.

ChemInform ◽  
1988 ◽  
Vol 19 (6) ◽  
Author(s):  
H. E. KATZ ◽  
K. D. SINGER ◽  
J. E. SOHN ◽  
C. W. DIRK ◽  
L. A. KING ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Organic Molecules ◽  
Second Order ◽  
Donor Acceptor

Theoretical study on naphthyl-phenylacetylenes for second-order nonlinear optical applications

1997 ◽  
Vol 75 (7) ◽  
pp. 1041-1046 ◽  
Author(s):  
B.V.V.S.N. Prabhakara Rao ◽  
D.C. Dube ◽  
D.P. Tewari ◽  
S.C. Mathur ◽  
M. Banerjee
Keyword(s):  
Ground State ◽  
Nonlinear Optical ◽  
Organic Molecules ◽  
Theoretical Study ◽  
Dipole Moments ◽  
Second Order ◽  
Donor Acceptor ◽  
Optical Applications ◽  
Nonlinear Optical Applications ◽  
Ground State Dipole Moments

The ground state dipole moments (μg), excited state dipole moments (μe), linear polarizabilities (α), first hyperpolarizabilities (β), and absorption maxima [Formula: see text] of a new series of 6,4′-disubstituted 2-naphthylphenylacetylenes have been calculated using the finite field – MNDO (Modified Neglect of Diatomic Overlap) technique and studied for second-order nonlinear optical (NLO) applications. Among all the molecules studied here, the strongest and the weakest electron donor/acceptor pairs [N(CH3)2/NO2] and [CH3/CN] exhibit the largest and the smallest βμ (projection of β on the axis of the μ) of 46.3 × 10−30 esu and 10.2 × 10−30 esu, respectively. The coefficients of the power law that describes the dependence of α and β on the number of conjugated bonds (n) were calculated for [NH2/NO2]n=1–5 and [NH2/CN]n=1–5 molecules. For β, exponents of 0.36 and 0.31 were obtained for [NH2/NO2]n=1–5 and [NH2/CN]n=1–5 molecules, respectively, and for α, an exponent of 0.37 was obtained for both series of molecules. A comparison is made between naphthylphenylacetylenes and diphenylacetylenes on the basis of their hyperpolarizabilities. Keywords: nonlinear optics, organic molecules, hyperpolarizabilities.

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.

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