Project supported by the National Natural Science Foundation of China (Grant Nos 60377016 and 60476020) and the National High Technology Development Program of China (Grant No 2002AA313070).
The third-order optical nonlinearities of [(CH3)4N]Au(dmit)2 (dmit = 4,5-dithiolate-1,3-dithiole-2-thione) at 532 nm and 1064 nm are investigated using the Z-scan technique with pulses of picoseconds duration. T...