Nonlinear optical properties of organic and polymeric materials
29 Sep 1983-
About: The article was published on 1983-09-29 and is currently open access. It has received 762 citations till now.
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TL;DR: In this article, the synthesis and structural characterization of new picoline derivatives, 5-ethyl-2-(4-nitro-7-ol-styryl)-pyridine, space group Pcab, a = 8.628, b = 10.405, and c = 31.604(5) A.
Abstract: Because of their strongly delocalized π electronic systems, polymeric and non-polymeric aromatic compounds show high nonlinear optical properties. The present work deals with the synthesis and structural characterization (including X-ray single crystal studies) of new picoline derivatives, 5-ethyl-2-(4-nitro-styryl)-pyridine, space group P
$${\bar 1}$$
a = 6.9505(7), b = 7.418(1), c = 13.877(2) A, α = 105.14(1), β = 93.88(1), γ = 105.89(1)°, and 5-ethyl-2-(4-nitro-7-ol-styryl)-pyridine, space group Pcab, a = 8.628(2), b = 10.405(2), and c = 31.604(5) A.
3 citations
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17 Aug 2010TL;DR: In this article, a self-consistent theory for the description of the optical linear and nonlinear response of molecules is introduced based strictly on the results of the experimental characterization, which can be used as a guide towards the modeling in terms of fundamental physical parameters.
Abstract: We introduce a self-consistent theory for the description of the optical linear and nonlinear response of molecules that is
based strictly on the results of the experimental characterization. We show how the Thomas-Kuhn sum-rules can be
used to eliminate the dependence of the nonlinear response on parameters that are not directly measurable. Our approach
leads to the successful modeling of the dispersion of the nonlinear response of complex molecular structures with
different geometries (dipolar and octupolar), and can be used as a guide towards the modeling in terms of fundamental
physical parameters.
3 citations
Cites background from "Nonlinear optical properties of org..."
...New and more efficient nonlinear-optical materials are needed for the development of applications such as all-optical information, storage and retrieval.[1-3] Currently, long-haul optical data transmission systems are based in the use of inorganic piezoelectric single crystals, such as LiNiO3 , in conjunction with laser diode sources to provide electro-optic amplitude modulation....
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01 Dec 1985
3 citations
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15 Jan 1990TL;DR: In this paper, a novel concept to obtain the highly aligned p-nitroaniline(p-NA) crystals in poly(oxyethylene)(POE) matrix is briefly reviewed.
Abstract: A novel concept to obtain the highly aligned p-nitroaniline(p-NA) crystals in poly(oxyethylene)(POE) matrix is briefly reviewed. The measurements of second harmonic coefficient for POE/p-NA system exhibiting efficient SHG activity were made by Maker-fringe method. The value of d33 is 39 x 10-9 esu at 1.064μm resulting from the alignment of p-NA crystals dispersed in polymer matrix. The structure-property relationship between crystallization process and SHG activity for POE/p-NA system is discussed.
3 citations
Cites background from "Nonlinear optical properties of org..."
...In general second harmonic power generated by the nonlinear polarization in eqs.(1) is given for radiation incident on polymer films through the glass substrate by eqs....
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...The second harmonic polarization in this geometry is written by eqs.(1)....
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TL;DR: The approach adopted in the present quantum computational study can be used for similar studies for better description and understanding of the NLO responses of the electron donor-bridge-acceptor systems with π-conjugated bridges.
3 citations