| dc.creator | Gabriel Ramos Ortiz | |
| dc.creator | MARIO ALEJANDRO RODRIGUEZ RIVERA | |
| dc.creator | JOSE LUIS MALDONADO RIVERA | |
| dc.date | 2015-08 | |
| dc.date | info:eu-repo/date/embargoEnd/2021-01-01 | |
| dc.date.accessioned | 2023-07-21T15:15:36Z | |
| dc.date.available | 2023-07-21T15:15:36Z | |
| dc.identifier | http://cio.repositorioinstitucional.mx/jspui/handle/1002/1038 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7725806 | |
| dc.description | A copolymer of 3-hexylthiophene and thiophene functionalized with disperse red 1, poly(3-HT-co-TDR1), was synthesized. Chemical structure, molecular weight distribution, optical and thermal properties of this copolymer were characterized by NMR, FT-IR, UV–vis, GPC and DSC–TGA. An optical nonlinear analysis by Z-scan method was also performed for both continuous wave (CW) and pulsed laser pumping. In the CW regime the nonlinearities were evaluated in solid films, and a negative nonlinear refractive index in the range 2.7–4.1 × 10−4 cm2/W was obtained. These values are notoriously high and allowed to observe self-defocusing effects at very low laser intensities: below 1 mW. Further, nonlinear self-phase modulation patterns, during laser irradiation, were also observed. In the pulsed excitation the nonlinear response was evaluated in solution resulting in large two-photon absorption cross section of 5725 GM for the whole copolymer chain and with a value of 232 GM per repeated monomeric unit. | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/embargoedAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.title | Polythiophene derivative functionalized with disperse red 1 chromophore: Its third-order nonlinear optical properties through Z-scan technique under continuous and femtosecond irradiation | |
| dc.type | info:eu-repo/semantics/article | |
