F. Caccavale et al., Secondary ion mass spectrometry and optical characterization of Ti : LiNbO3 optical waveguides, APPL SURF S, 150(1-4), 1999, pp. 195-201
Secondary ion mass spectrometry (SIMS) and m-lines spectroscopy have been a
pplied to study Ti:LiNbO3 slab optical waveguides with high titanium surfac
e concentration. By combining the two techniques, a saturation in the depen
dence of the refractive index change on the dopant concentration has been f
ound. By the use of SIMS in image mode, the lateral diffusion of titanium i
n Ti:LiNbO3 channel waveguides has been observed and analyzed. (C) 1999 Els
evier Science B.V. All rights reserved.