Strong two-photon absorption of self-assembled butadiyne-linked bisporphyrin.
Two-photon absorption (2PA) properties of self-assembled porphyrins were investigated. The butadiyne-linked porphyrin array exhibited a 20 times larger 2PA cross section than the meso-meso-linked self-assembled array due to the expansion of pi-conjugation. Higher-order nonlinear absorption was also observed in the former porphyrin.
Graduate School of Materials Science, Nara Institute of Science and Technology, Japan.
Kazuya
K
Ogawa
Atsushi
A
Ohashi
Yoshiaki
Y
Kobuke
Kenji
K
Kamada
Koji
K
Ohta