摘要
利用Ｚ－扫描技术，以调ＱＮｄＹＡＧ激光器作光源（脉宽１８ｎｓ，波长为０．５３μｍ），首次在非共振区域研究了ＳｎＯ２纳米微粒的三阶非线性光学性质，获得了三阶非线性极化系数χ（３）与双光子吸收系数β等重要数据。
The third order optical nonlinearities of SnO 2 nanoparticles were studied in a nonresonant region by Z scan technique with 18 ns, 0.53 μm pulses from a Q switched Nd∶YAG laser. The sign and magnitude of the third order nonlinear susceptibility χ (3) and two photon absorption coefficient β, et al., of SnO 2 nanoparticles with different size were obtained. The experimental results were discussed in terms of the quantum confined effect.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1997年第4期423-429,共7页
Acta Optica Sinica
基金
中国博士后基金
上海光学精密机械研究所所长基金
国家科委攀登计划资助项目
