Optical nonlinear properties of a new porphyrin compound

摘要

A new organic material 4-hydroxy-ethyl-phenyl-porphyrin-3-propionate was investigated due to its favorable nonlinear absorptive and refractive properties using a modified time-resolved pump-probe system with phase object at 532 nm under picosecond pulse excitation. A five-level model was used to explain the optical nonlinearity of the sample. With the corresponding fitting program, the nonlinear coefficients of the sample were obtained.