J. Boudiombo et al., Electro-optical characterization of h-BN thin film waveguides by prism coupling technique, MAT SCI E B, 59(1-3), 1999, pp. 244-247
Waveguides were fabricated by deposition of boron nitride thin films onto g
lass substrates by a microwave plasma enhanced chemical vapor deposition (P
ECVD) process. We have characterized the optical linear properties of the a
s-deposited layers by m-lines spectroscopy. We have used a simple method ba
sed on the shift of the synchronous angles of the guided modes to investiga
te the electro-optic tensor r(ij) using co-planar electrodes. With TM polar
ized light the value of r(eff) computed is of the order of 5 pm V-1. (C) 19
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