A. Yamashita et al., 3RD-ORDER NONLINEAR-OPTICAL PROPERTIES OF VANADYLPHTHALOCYANINE DERIVATIVE FILMS WITH ADDITIONAL RINGS, Optics communications, 145(1-6), 1998, pp. 141-144
We formed thin films of vanadylphthalocyanine (VOPc), vanadyldibenzoph
thalocyanine (VODBPc), and vanadylnaphthalocyanine (VONc) on sapphire
substrates and measured their third-harmonic generation (THG) at 1.6 a
nd 1.9 mu m. The chi((3)) values of amorphous and crystalline films we
re in the order VOPc > VODBPc > VONc. The third-order hyperpolarizabil
ities estimated at 1.6 mu m from the chi((3)) values of amorphous film
s were also in the same order. (C) 1998 Elsevier Science B.V.