Anthracene derivatives as broadband nonlinear optical materials: nonlinear absorption and excited-state dynamics analysis
作者:Wenfa Zhou、Yu Fang、Xingzhi Wu、Yanbing Han、Junyi Yang、Lei Shen、Yinglin Song
DOI:10.1039/d0ra02638g
日期:——
absorption induced excited-state absorption (TPA-ESA). At all wavelengths, the reverse saturable absorption of AN-2 is superior to that of AN-1 due to a better molecular planarity for AN-2. Compared with the results of AN-1, the two-photon absorption coefficient of AN-2 can be increased by nearly 8 times (from 0.182 × 10−2 cm GW−1 for AN-1 to 1.42 × 10−2 cm GW−1 for AN-2) at 600 nm by extending the π-bridge