Journal ArticleDOI
Chromophores for second-order non-linear optic materials
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TLDR
The theory of the electro-optic effect and second harmonic generation in the context of the linear Stark effect was developed in this article, with an emphasis on the optical bandwidth of the charge-transfer transitions responsible for the hyperpolarisability.Abstract:
The theory of the electro-optic effect and second harmonic generation is developed in the context of the linear Stark effect. This leads to an emphasis both on the optical bandwidth of the charge-transfer transitions responsible for the hyperpolarisability, and on the relationship between the transition energies and optical frequency of an electro-optic device. A simple treatment of vibronic coupling illustrates the connection between the bond-length alternation in conjugated polyenes and the sign and magnitude of the non-linearity. A brief survey is made of current chemical strategies for optimising the non-linearity.read more
Citations
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Journal ArticleDOI
New Concepts in Tetrathiafulvalene Chemistry.
José L. Segura,Nazario Martín +1 more
TL;DR: It has been confirmed that TTF can display efficient nonlinear optic responses in the second and third harmonic generation as well as a good thermal stability, which can be combined with the redox ability of TTF as an external stimuli to provide a promising strategy for the molecular engineering of switchable NLO materials.
Journal ArticleDOI
Second‐Order Optical Nonlinearities in Coordination Chemistry: The Case of Bis(salicylaldiminato)metal Schiff Base Complexes
TL;DR: In this article, a review of the NLO capabilities of bis(salicylaldiminato) metal Schiff base complexes is presented, where chromophores with enhanced hyperpolarizabilities (β) can be obtained by virtue of the coordinated metal center.
Book ChapterDOI
Organic Materials for Second-Order Non-Linear Optics
J. Jens Wolff,Rüdiger Wortmann +1 more
TL;DR: In this paper, the second-order molecular polarizabilities of organic molecules are surveyed and the underlying physical principles of nonlinear optics (e.g. molecular topology) and the establishment of structure-property relationships.
Journal ArticleDOI
Synthesis and second-order nonlinear optical properties of new copper(II), nickel(II), and zinc(II) Schiff-base complexes. Toward a role of inorganic chromophores for second harmonic generation
TL;DR: In this paper, a Schiff-base ligand based on condensation of diaminomaleonitrile and 4-(diethylamino)salicylaldehyde is reported with its copper, nickel, and zinc complexes.
Journal ArticleDOI
Tetrathiafulvalene Derivatives as NLO-phores: Synthesis, Electrochemistry, Raman Spectroscopy, Theoretical Calculations, and NLO Properties of Novel TTF-Derived Donor-π-Acceptor Dyads
Mar González,José L. Segura,Carlos Seoane,Nazario Martín,Javier Garín,Jesús Orduna,Rafael Alcalá,Belén Villacampa,Hernández,López Navarrete Jt +9 more
TL;DR: Novel pi-conjugated donor-acceptor chromophores, based on the strong electron-donating tetrathiafulvalene moiety and different electron-withdrawing acceptors, exhibit large second-order optical nonlinearities.
References
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Journal ArticleDOI
Solitons in conducting polymers
TL;DR: In this article, the authors review the theoretical models that have been developed to describe the physics of polyacetylene and related conducting polymers and summarize the relevant experimental results obtained for these materials.
Journal ArticleDOI
Design and construction of molecular assemblies with large second-order optical nonlinearities. Quantum chemical aspects
Journal ArticleDOI
Theory of the Electronic Spectra and Structure of the Polyacenes and of Alternant Hydrocarbons
TL;DR: In this paper, a previously given theory of the electronic spectra and structure of complex unsaturated molecules is further elucidated by listing specific formulas for the charge density, bond order, transition moment, and configuration interaction matrix elements.
Journal ArticleDOI
Experimental investigations of organic molecular nonlinear optical polarizabilities. 1. Methods and results on benzene and stilbene derivatives
Lap Tak Cheng,Wilson Tam,Sylvia H. Stevenson,Gerald R. Meredith,Geert L. J. A. Rikken,Seth R. Marder +5 more
Journal ArticleDOI
Simple reflection technique for measuring the electro‐optic coefficient of poled polymers
C. C. Teng,H. T. Man +1 more
TL;DR: In this article, a simple reflection technique for measuring the electrooptic coefficient of nonlinear optical polymeric films is described, based on the polarization rotation of a laser beam due to the electro-optic effect.