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Nonresonant optical nonlinearity of ZnO composite nanoparticles with different interfacial chemical environments
| Content Provider | Scilit |
|---|---|
| Author | Wang, Rongyao Wu, Xiaochun Zou, Bingsuo Wang, Li Xie, Sishen Xu, Jiren Huang, Wei |
| Copyright Year | 1998 |
| Description | Journal: Materials Research Innovations ZnO nanoparticles coated by surfactant molecules were synthesized by microemulsion method. Under proper thermal treatment, a new ZnO/surfactant composite nanoparticles were formed and exhibited an unique optical property. The third-order optical nonlinearity χ(3) of ZnO composite nanoparticles with different interfacial chemical environment were measured by single-beam Z-scan technique, the sign and magnitude of both the real and imaginary parts of χ(3) at 790 nm were measured to be: –5.2×10–16 m2/W and 11.6 cm/Gw for ZnO/DBS composite nanoparticles (DBS, dodecyl benzene sulfonate, anionic surfactant); and –2.2x10–17 m2/W, 0.45 cm/Gw for ZnO/CTAB composite nanoparticles (CTAB, cetyltrimethyl ammonium bromide, cationic surfactant). The ultrafast nonlinear response time (∼250 fs) measured by time-resolved pump-probe technique at excitation wavelength of 647 nm suggests that the optical nonlinearity below band-gap originate mainly from a rapid electronic polarization process or virtual process such as the optical Stark effect. |
| Related Links | http://link.springer.com/content/pdf/10.1007/s100190050061.pdf |
| Ending Page | 52 |
| Page Count | 4 |
| Starting Page | 49 |
| ISSN | 14328917 |
| e-ISSN | 1433075X |
| DOI | 10.1007/s100190050061 |
| Journal | Materials Research Innovations |
| Issue Number | 1 |
| Volume Number | 2 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 1998-05-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Materials Research Innovations Condensed Matter Physics Composite Nanoparticles Optical Nonlinearity |
| Content Type | Text |
| Subject | Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering |
