| Full text | |
| Author(s): |
Santos, Francisco A.
[1, 2]
;
Abegao, Luis M. G.
[3]
;
Fonseca, Ruben D.
[4]
;
Alcantara, Aline M.
[5]
;
Mendonca, Cleber R.
[6]
;
Alencar, March A. R. C.
[1, 2]
;
Valle, Marcelo S.
[5]
;
Kamada, Kenji
[7]
;
De Boni, Leonardo
[6]
;
Rodrigues Jr, Jose J.
Total Authors: 10
|
| Affiliation: | [1] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE - Brazil
[2] Univ Fed Sergipe, Lab Corrosao & Nanotecnol Nucleo Petroleo & Gas, BR-49100000 Sao Cristovao, SE - Brazil
[3] Yale Univ, Sch Med, Dept Radiol & Biomed Imaging, 300 Cedar St, New Haven, CO 06520 - USA
[4] Univ Popular Cesar, Dept Fis, Barrio Sabana 2000004, Valledupar - Colombia
[5] Univ Fed Sao Joao Del Rei, Dept Ciencias Nat, BR-36301160 Sao Joao Del Rei, MG - Brazil
[6] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[7] Natl Inst Adv Ind Sci & Technol, IFMRI, Ikeda, Osaka 5638577 - Japan
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | PHOTONICS; v. 7, n. 1 MAR 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
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 cm(4)center dot statvolt(-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. (AU) | |
| FAPESP's process: | 16/20886-1 - Ultrafast nonlinear optical spectroscopy: Transient Absorption and optical Kerr Gate with polarization control |
| Grantee: | Leonardo De Boni |
| Support type: | Regular Research Grants |
| FAPESP's process: | 18/11283-7 - Nonlinear photonics: spectroscopy and advanced processing of materials |
| Grantee: | Cleber Renato Mendonça |
| Support type: | Research Projects - Thematic Grants |