Abstract
We report the nonlinear optical properties of one metal cluster [PPh4][C*pWS3(CuBr) 3(dppm)] by picosecond and nanosecond laser pulses. The third-order nonlinear susceptibility χ(3) is measured by degenerate four-wave mixing, the nonlinear absorption by the Z-scan technique, and optical limiting response by the transmission technique. The experimental data are theoretically fitted, and the mechanism for the third-order optical nonlinearities and the optical limiting properties are discussed, and the absorption cross sections of the ground state and the excited state are evaluated by a rate equation model.
| Original language | English |
|---|---|
| Pages (from-to) | 524-528 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 372 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - 29 Apr 2003 |
| Externally published | Yes |