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

We show that peripheral nitro groups enhance the maximum two-photon absorption cross-section of trans-A(2)B(2)-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 resonan...

Ամբողջական նկարագրություն

Մատենագիտական մանրամասներ
Հիմնական հեղինակներ: Nowak-Król, A, Wilson, C, Drobizhev, M, Kondratuk, D, Rebane, A, Anderson, H, Gryko, D
Ձևաչափ: Journal article
Լեզու:English
Հրապարակվել է: 2012
Նկարագրություն
Ամփոփում:We show that peripheral nitro groups enhance the maximum two-photon absorption cross-section of trans-A(2)B(2)-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.