摘要A newly synthesized 1,3,4-oxadiazole derivatives have been studied using a femtosecond Ti:sapphire laser system. The series molecules present strong three-photon absorption and frequency upconversion fluorescence at wavelengths from 1205nm to 1575nm. Furthermore, there is no proportional relationship between three-photon absorption cross sections and the chemical structure transformation from monomer, dimer to trimer. Effective charge-transfer distance by π-conjugation bonds may be the contributing factor. In the experimental design, the far-field intensity distribution of femtosecond laser beam has been taken into account. We give the optimized analytical solution of nonlinear transmission in a three-photon absorption (3PA) process when the incident beam has a Gaussian transverse spatial profile.
Abstract：A newly synthesized 1,3,4-oxadiazole derivatives have been studied using a femtosecond Ti:sapphire laser system. The series molecules present strong three-photon absorption and frequency upconversion fluorescence at wavelengths from 1205nm to 1575nm. Furthermore, there is no proportional relationship between three-photon absorption cross sections and the chemical structure transformation from monomer, dimer to trimer. Effective charge-transfer distance by π-conjugation bonds may be the contributing factor. In the experimental design, the far-field intensity distribution of femtosecond laser beam has been taken into account. We give the optimized analytical solution of nonlinear transmission in a three-photon absorption (3PA) process when the incident beam has a Gaussian transverse spatial profile.
HUANG Wei;LU Chang-Gui;QIAN Ying;LIU Chang;WANG Zhu-Yuan;CUI Yi-Ping. Three-Photon Absorption and Upconversion Fluorescence Properties of Series 1,3,4-Oxadiazole Derivatives[J]. 中国物理快报, 2008, 25(3): 974-977.
HUANG Wei, LU Chang-Gui, QIAN Ying, LIU Chang, WANG Zhu-Yuan, CUI Yi-Ping. Three-Photon Absorption and Upconversion Fluorescence Properties of Series 1,3,4-Oxadiazole Derivatives. Chin. Phys. Lett., 2008, 25(3): 974-977.
[1]Zhao C F et al 1995 Chem. Mater. 7 1979 [2] Narang U et al 1996 J. Phys. Chem. 100 4521 [3] Wang G P 2000 Physics 29 546 (in Chinese) [4] He G H et al 2003 Acta Phys. Sin. 52 1929 (in Chinese) [5] Tao L M, Guo Y L, Huang X M and Wang C K 2006 J. At. Mol.Phys. 23 641 [6] Zheng Q D, He G S, Prasad P N 2005 Chem. Mater. 17 6004 [7] Yi S W et al 2005 Proc. SPIE 5715 118 [8] Lin X J et al 2004 J. Chem. Phys. 121 8253 [9] Guang S Y, Yin S C, Xu H Y and Song Y L 2006 J. FunctionMater. 2 325 [10] Slepkov A D, Hegmann F A, Tykwinski R R et al 2006 Opt.Lett. 31 3315 [11] Qian Y et al 2006 Acta Chim. Sin. 64 2473 [12] Liu J H et al 2007 J. Chem. Phys. A 111 9013 [13] Zheng Q D, He G S, Lu C G, Prasad P N 2005 J. Mater.Chem. 15 3488 [14] Ma W B et al 2005 Acta Phys. Sin. 54 3698 [15] He G S, Markowicz P P, Lin T Z and Prasad P N 2002 Nature 415 767 [16] Lu C G et al 2007 Appl. Phys. Lett. 91 121111
2008, Vol. 25 
