Nonlinear Optical Study in a Set of Dibenzylideneacetone Derivatives with Potential for Optical Frequency Conversion
| Autor: | Cleber Renato Mendonça, Marcelo Siqueira Valle, Ruben D. Fonseca, Leonardo De Boni, Francisco A. Santos, Luis M. G. Abegão, José J. Rodrigues, Kenji Kamada, Aline M. Alcântara, Márcio A. R. C. Alencar |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Applied optics. Photonics
Materials science Absorption spectroscopy Optical communication Physics::Optics Hyperpolarizability NANOPARTÍCULAS 02 engineering and technology 010402 general chemistry optical communications dibenzylideneacetone derivatives 01 natural sciences Two-photon absorption Radiology Nuclear Medicine and imaging two-photon absorption Instrumentation business.industry second harmonic generation Second-harmonic generation lcsh:TA1501-1820 frequency converters 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics 0104 chemical sciences Characterization (materials science) Nonlinear system Optoelectronics quantum chemical calculations Photonics 0210 nano-technology business organic compounds |
| Zdroj: | Photonics, Vol 7, Iss 1, p 8 (2020) Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Photonics Volume 7 Issue 1 |
| ISSN: | 2304-6732 |
| Popis: | The search for advanced optical materials, in particular, materials with nonlinear optical responses, has, in the last years, experienced substantial growth due to their vast applications in the photonics field. One of those applications is ultra-fast optical frequency conversion, in the optics communications field. Organic compounds have emerged as promising candidates for raw materials to develop nonlinear optical devices, such as optical converters, due to their intrinsic ultra-fast electronic responses. Also, the easy tailoring of organic molecular structures makes organic materials much more appealing than the inorganic ones. In this work, we have performed a linear and nonlinear optical characterization of a set of dibenzylideneacetone derivatives. The nonlinear optical responses investigated correspond to second- and third-order nonlinear processes, namely, first electronic molecular hyperpolarizability and two-photon absorption cross-section, respectively. The value of the first electronic molecular hyperpolarizability, up to 52 cm4· statvolt&minus 1, could be considered a robust value when compared to the short-sized &pi electron backbone length of the studied compounds. Such results suggest that these compounds exhibit the potential to be used as optical frequency converters. Quantum chemical calculations were used to predict the theoretical value of the first molecular hyperpolarizability, as well as to simulate the one- and two-photon absorption spectra for all compounds. |
| Databáze: | OpenAIRE |
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