【摘要】 报道了有机材料ＺｎＴＢＰ／ＣＡ／ＰｈＲ对激光的反饱和吸收特性。理论分析从该材料特有的五能级结构出发，指出三重态的第一激发态在反饱和吸收过程中的重要作用，并用两束光同时照射样品的实验方法进行了验证。该材料的反饱和吸收效应可在功率不太高的连续光下操作更多还原

【Abstract】 In this paper the reverse saturable absorption (RSA) in the organic material ZnTBP/CA/PhR is reported. The energy level is studied using the rate equation theory and it is found that the absorption cross section of the first excited triplet state should be bigger than that of the ground state in RSA process. It is proved by the experiment in which an Ar + laser and a dye laser focused onto the sample together. The RSA in this material can be operated with a continuous wave laser of moderate energy.更多还原