Second harmonic generation (SHG) from indium tin oxide (ITO) films on glass
substrates has been investigated in detail for the first time. Significant
SHG intensity and non-linear optical anisotropy was observed from ITO film
s due to orientation of the crystal cells. The SHG reached a maximum in int
ensity at an incident angle of 60 degrees. The effective second order non-l
inear optical susceptibility chi(eff)(2) was about 2.4 x 10(-10) esu. (C) 2
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