Reverse saturable absorption in palladium and zinc tetraphenyltetrabenzoporphyrin doped xerogels

被引:61
作者
Brunel, M
Chaput, F
Vinogradov, SA
Campagne, B
Canva, M
Boilot, JP
Brun, A
机构
[1] ECOLE POLYTECH,PHYS MAT CONDENSEE LAB,URA CNRS 1254D,GRP CHIM SOLIDE,F-91128 PALAISEAU,FRANCE
[2] INST OPT THEOR & APPL,OPT NONLINEAIRE GRP,URA CNRS 14,F-91403 ORSAY,FRANCE
[3] UNIV PENN,SCH MED,DEPT BIOCHEM & BIOPHYS,PHILADELPHIA,PA 19104
关键词
D O I
10.1016/S0301-0104(97)00084-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Solid-state inorganic matrices (xerogels) doped with tetraphenyltetrabenzoporphyrins of Pd and Zn (PdTPTBP and ZnTPTBP) have been prepared using the sol-gel process. Nonlinear reverse saturable absorption was observed for both materials when they were illuminated with nanosecond laser pulses at 532 nm. PdTPTBP doped xerogels exhibit nonlinear activation thresholds of about 10 mJ/cm(2), which is much lower than the value of 80 mJ/cm(2) obtained under similar conditions for Al phthalocyanine chloride. The experimental results are discussed using classical 4 energy level diagrams.
引用
收藏
页码:301 / 307
页数:7
相关论文
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