Study on third-order nonlinear optical properties of [(C4H9)4N]Au(dmit)2 using Z-scan technique

A dmit2- salt ([(C
4
H
9
)
4
N]Au(dmit)
²
) was synthesized and its acetone solution's third-order nonlinear optical properties were investigated by Z-scan technique using a pulsed laser with 28 ps duration and 10 Hz repetition at 532 nm. The second-order hyperpolarizability for its molecular was estimated to be as large as 2.74×10
⁻³¹
esu.