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.
No takes yet. Share an insight, caveat, or question.
Ogawa et al. (2003) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: