Nonlinear Optical and Two-Photon Absorption Properties of Octupolar Tris(bipyridyl)metal Complexes

2007 ◽  
Vol 111 (37) ◽  
pp. 8980-8985 ◽  
Author(s):  
Christophe Feuvrie ◽  
Olivier Maury ◽  
Hubert Le Bozec ◽  
Isabelle Ledoux ◽  
Joseph P. Morrall ◽  
...  
2006 ◽  
Vol 10 (03) ◽  
pp. 160-166 ◽  
Author(s):  
Liang Shen ◽  
Xiaomei Wang ◽  
Bo Li ◽  
Wanli Jiang ◽  
Ping Yang ◽  
...  

The two-photon absorption (TPA) properties of two newly synthesized substituted porphyrins: 5,10,15,20-tetra-(4-pyrrolidinylphenyl)porphyrin (1) and 5,10,15,20-tetra-(4-diphenylamino-benzoic acid phenyl) porphyrin ester (3) were measured by the femtosecond Z-scan technique at 800 nm Ti : sapphire laser and by direct nonlinear optical transmission (NLT) using nanosecond Nd : YAG laser. The substituent effects, pumped wavelength and the environment upon the molecular TPA cross-section were investigated. It is found that the TPA cross-section for 3 is enhanced under excitation of 800 nm, relative to its precursor, 5,10,15,20-tetra(4-hydroxyphenyl) porphyrin (2), due to the former possessing extension conjugation of "D-A-core-A-D" molecular architecture. Also sample 3 obtained an increased TPA cross-section in rigid film relative to that in solution, suggesting that the enhancement is facilitated by the quasi-planar structure which allows direct interbranch conjugation throughout the molecule.


2020 ◽  
Vol 49 (23) ◽  
pp. 7737-7746
Author(s):  
Mukundam Vanga ◽  
Shreenibasa Sa ◽  
Anupa Kumari ◽  
Anna Chandrasekar Murali ◽  
Prakash Nayak ◽  
...  

B ← N coordinated phenanthroimidazole dimers exhibit excellent fluorescence quantum yields in solution and conjugation length dependant two-photon-absorption properties.


2017 ◽  
Vol 5 (27) ◽  
pp. 5458-5463 ◽  
Author(s):  
Jian Su ◽  
Jun Zhang ◽  
Xiaohe Tian ◽  
Meng Zhao ◽  
Tao Song ◽  
...  

Nonlinear optical CPs with good one- and two-photon excited fluorescence and SHG properties are presented.


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