光学学报, 1999, 19 (10): 1415, 网络出版: 2006-08-09
1-(2-吡啶偶氮)-2-萘酚薄膜的非线性光学特性研究
Nonlinear Optical Properties of 1-(2-Pyridylazo)-2-Naphthol Thin Film
1-(2-吡啶偶氮)-2-萘酚薄膜 三阶非线性极化率 非线性吸收 1-(2-pyridylazo)-2-naphthol thin film third-order nonlinear susceptibility nonlinear absorption
摘要
运用Z扫描方法研究了1-(2-吡啶偶氮)-2-萘酚薄膜的非线性光学特性。 用皮秒脉冲激光测得在532 nm处、 光强较低时χ(3)R=1.29×10-9 esu, β=42 cm/GW; 同时研究了不同光脉冲能量时的非线性吸收特性, 发现其非线性吸收随着光强的增大由反饱和吸收转为饱和吸收。
Abstract
The nonlinear optical properties of 1-(2-pyridylazo)-2-naphthol film were studied by using Z-scan technique with ps pulse laser at 532 nm. Under the condition of the lower input pulse enrgy, the resonance third-order nonlinear susceptibility χ(3)R and nonlinear absorption coefficient β were measured to be 1.29×10-9 esu and 42 cm/GW, respectively. The nonlinear absorption responding to the pulse energy was studied and it was found that the reverse saturable absorption turns into the saturable absorption with the increasement of pulse energy.
杨希华, 孙真荣, 丁良恩, 秦莉娟, 王祖赓. 1-(2-吡啶偶氮)-2-萘酚薄膜的非线性光学特性研究[J]. 光学学报, 1999, 19(10): 1415. 杨希华, 孙真荣, 丁良恩, 秦莉娟, 王祖赓. Nonlinear Optical Properties of 1-(2-Pyridylazo)-2-Naphthol Thin Film[J]. Acta Optica Sinica, 1999, 19(10): 1415.