- Tytuł:
- Determination of Nonlinear Optical Properties of MgO Nanoparticles Doped in Poly (Ether) Urethane
- Autorzy:
-
Nadafan, M.
Malekfar, R.
Dehghani, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/1402309.pdf
- Data publikacji:
- 2015-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 42.65.-k
- Opis:
- The third-order optical nonlinearities of poly (ether) urethane open cell (PEUOC)/MgO nanocomposites, dissolved in dimethylformamide are characterized by Z-scan technique with CW Nd:YAG laser at its second harmonic frequency of 532 nm with TEM00 Gaussian profile. The synthesized samples are also characterized by optical microscopy and scanning electron microscopy imaging. The nonlinear refractive indices and nonlinear absorption coefficients of the synthesized samples are obtained in the order of $10^{-8} cm^{2}//W$ with negative sign and $10^{-5} cm//W$, respectively. The origin of optical nonlinearity in this case may be attributed due to the presence of strong saturable absorption effect. All the results suggest that the nonlinear coefficients of the synthesized samples can be controlled by nanoparticles content into PEUOC. Furthermore, the results show that PEUOC/MgO may be promising candidate for the application to optical limiting in the visible region.
- Źródło:
-
Acta Physica Polonica A; 2015, 128, 1; 29-33
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki