Abstract

Due to their optically isotropic properties inorganic glasses are not expected to exhibit second-order optical nonlinearity χ^<2>. However, we have observed that χ^<2> can be induced in radio-frequency(rf) sputtered Corning 7059 glass films by corona poling and realized phase-matched second-harmonic generation(SHG) in a corona-poled glass film waveguide.¹ To elucidate the mechanism responsible for the induced χ^<2> in the corona-poled glass films is not only interesting from a physical point of view but also serves to develop new glass films with a large χ^<2>.

© 1993 Optical Society of America