Amplified two-photon absorption in trans-A2B2-porphyrins bearing nitrophenylethynyl substituents.

Amplified two-photon absorption in trans-A2B2-porphyrins bearing nitrophenylethynyl substituents.
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DOI:
10.1002/cphc.201200507
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发表时间:
2012-12-07
期刊:
Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子:
--
通讯作者:
Gryko DT
Gryko DT
中科院分区:
其他
文献类型:
--
作者:
Nowak-Król A;Wilson CJ;Drobizhev M;Kondratuk DV;Rebane A;Anderson HL;Gryko DT

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我们发现,周边硝基提高最大双光子吸收截面的反式-A2 B2-卟啉轴承两个苯乙炔基取代超过一个数量级。最大值高达1000 GM的结果,从实现有效的共振增强沿着的能量降低和增强的双光子允许的跃迁在Soret区域的合适的条件。
We show that peripheral nitro groups enhance the maximum two-photon absorption cross-section of trans-A2B2-porphyrins bearing two phenylethynyl substituents by more than one order of magnitude. Maximum values as high as 1000 GM result from realization of suitable conditions for effective resonance enhancement along with a lowering of the energy and intensification of the two-photon allowed transitions in the Soret region.
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