1.
Opt Lett
; 32(8): 942-3; discussion 944-5, 2007 Apr 15.
Article
in English
| MEDLINE
| ID: mdl-17375161
ABSTRACT
It is shown that energy/length scaling complicates maximizing the first hyperpolarizability of a single electron as a function of the potential. A more transparent formula for this hyperpolarizability is given. Examining this formula demonstrates that Zhou et al.(1) have not proved that modulated conjugation results in large hyperpolarizability.