ICCAS OpenIR
Optical limiting of eight-beta-octa-octyloxy-phthalocyanines for picosecond pulses in solution
Chen, Y; Wang, DY; Li, YJ; Nie, YX
2003-12-01
Source PublicationOPTICAL MATERIALS
ISSN0925-3467
Volume24Issue:3Pages:581-587
AbstractThe optical power limiting performances for eight-beta-octa-octyloxy phthalocyanines with initial linear transmission T-0 = 88-92% at 532 nm in a 0.5 cm spectroscopic cell in toluene have been measured with 35 ps pulses, in which eight-beta-octa-octyloxy phthalocyanine free-base exhibits the strongest optical limiting ability through a reverse saturable absorption from S-1 --> S-n excited singlet states with sigma(S1) = 4.0 x 10(-17) cm(2). The optical limiting thresholds are 50, 130 and 140 mJ/cm(2) at T/T-0 = 0.5 for eight-beta-octa-octyloxy phthalocyanine free base, nickel phthalocyanine, and lead phthalocyanine respectively. The throughput of eight-beta-octa-octyloxy phthalocyanine free base is clamped down to 70 mJ/cm(2) with the limiting nonlinear transmittance T-lim, = 0.18 as the incident fluence reaching to 400 mJ/cm(2). The aggregation behaviors for eight-beta-octa-octyloxy phthalocyanines have been studied, in which the aggregation equilibrium constant k = 5.6 x 10(3) in toluene for eight-beta-octa-octyloxy phthalocyanine free base is larger than in mixed solvent containing acetonitrile (k' = 1.4 x 10(3)). This means that the eight-beta-octa-octyloxy phthalocyanines aggregate more easily in nonpolar solvent than in polar solvent through the pi-pi interaction. (C) 2003 Elsevier B.V. All rights reserved.
KeywordEight-beta-octa-octyloxy Phthalocyanine Excited Singlet Absorption Optical Limiting Reverse Saturable Absorption
DOI10.1016/S0925-3467(03)00157-5
Indexed BySCI
Language英语
WOS IDWOS:000186649300020
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80680
Collection中国科学院化学研究所
Corresponding AuthorWang, DY
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Chen, Y,Wang, DY,Li, YJ,et al. Optical limiting of eight-beta-octa-octyloxy-phthalocyanines for picosecond pulses in solution[J]. OPTICAL MATERIALS,2003,24(3):581-587.
APA Chen, Y,Wang, DY,Li, YJ,&Nie, YX.(2003).Optical limiting of eight-beta-octa-octyloxy-phthalocyanines for picosecond pulses in solution.OPTICAL MATERIALS,24(3),581-587.
MLA Chen, Y,et al."Optical limiting of eight-beta-octa-octyloxy-phthalocyanines for picosecond pulses in solution".OPTICAL MATERIALS 24.3(2003):581-587.
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