Third harmonic generation of vanadyl-phthalocyanine film prepared on NaCl substrate by molecular beam epitaxy

The incident angle dependence of TH intensity of VOPc film irradiated with p polarized laser beam shows an upper convex curve that has a maximum value at -15 degree. It suggest that the tensor of TH susceptibility of VOPc film is dominated with the components of /spl chi//sub (xxxx)/ and /spl chi//sub (yyyy)/ and also indicates that the VOPc molecules deposited on NaCl have a tilt angle. These may give us information about THG.