| Full text | |
| Author(s): |
Santos, Francisco A.
[1]
;
Abegao, Luis M. G.
[1, 2]
;
Fonseca, Ruben D.
[3, 4]
;
Alcantara, Aline M.
[5]
;
Mendonca, Cleber R.
[3]
;
Valle, Marcelo S.
[5]
;
Alencar, M. A. R. C.
[1]
;
Kamada, Kenji
[6]
;
De Boni, Leonardo
[3]
;
Rodrigues, Jr., J. J.
[1]
Total Authors: 10
|
| Affiliation: | [1] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE - Brazil
[2] Yale Univ, Dept Radiol & Biomed Imaging, 330 Cedar St, New Haven, CT 06520 - USA
[3] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil
[4] Univ Popular Cesar, Dept Fis, Valledupar 2000004, Cesar - Colombia
[5] Univ Fed Sao Joao Del Rei, Dept Ciencias Nat, BR-36301160 Sao Joao Del Rei, MG - Brazil
[6] Natl Inst Adv Ind Sci & Technol, IFMRI, Ikeda, Osaka 5638577 - Japan
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY; v. 369, p. 70-76, JAN 15 2019. |
| Web of Science Citations: | 4 |
| Abstract | |
This work reports the study of the second- and third-order nonlinear optical properties of two dibenzylide-neacetone derivatives: (1E,4E)-1,5-bis(4-bromophenyl)penta-1,4-dien-3-one (4-DBDBA) and (1E,4E)-1,5-bis(4-chlorophenyl)penta-1,4-dien-3-one (4-DCDBA) in dichloromethane solution. The nonlinear optical properties investigated were the first molecular hyperpolarizability and the two-photon absorption (2PA) cross-section by using the hyper-Rayleigh scattering (HRS) and Z-scan techniques respectively. The values of the first molecular hyperpolarizability obtained by HRS (beta(HRS)) were 25 x 10(-30) cm(4) statvolt(-1) for 4-DBDBA whereas for 4-DCDBA was 27 x 10(-3) cm(4) statvolt(-1). The peak value for 2PA cross-section by the spectral measurement was around 24 GM for 4-DBDBA and 17 GM for 4-DCDBA. In addition, quantum chemical calculations were performed to support the interpretation from experimental results.RS (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 Opportunities: | Regular Research Grants |
| FAPESP's process: | 11/23587-1 - Polymeric structures with carbon nanotubes: laser processing, characterization and applications |
| Grantee: | Adriano José Galvani Otuka |
| Support Opportunities: | Scholarships in Brazil - Doctorate |