Measurement of Two-Photon Absorption of Silicon Nanocrystals in Colloidal Suspension for Bio-Imaging Applications
Measurement of Two-Photon Absorption of Silicon Nanocrystals in Colloidal Suspension for Bio-Imaging Applications
复制标题
DOI：
10.1002/pssb.201700501
复制
发表时间：
2018-04-01
影响因子：
1.6
通讯作者：
Downer, Michael C.
中科院分区：
文献类型：
--
作者：
Furey, Brandon J.;Silbaugh, Dorothy A.;Downer, Michael C.
由于配体钝化硅纳米晶（ncSi）在悬浮液中的双光子吸收截面较低，且在高光强下悬浮液中存在竞争性非线性光学过程，因此难以直接测量其双光子吸收。在这里，我们克服了这些困难，为小（直径d
Two-photon absorption (2PA) of ligand-passivated silicon nanocrystals (ncSi) in liquid suspensions is difficult to measure directly because of their low 2PA cross section and competing nonlinear optical processes in the suspension medium at high light intensity. Here we overcome these difficulties for small (diameter d