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Article Dans Une Revue Optics Express Année : 2006

Deep UV light induced, fast reconfigurable and fixed waveguides in Mg doped LiTaO3

Résumé

Dynamic waveguides are induced beneath the surface of magnesium doped near-stoichiometric lithium tantalate by deep UV light at λ = 257 nm using the interband photorefractive effect. The waveguides can be reconfigured in 10 ms at UV intensities of 100 mW/cm2. We show the importance of the background illumination for the build-up of dynamic optical waveguides. We also present a new fixing process of the light-induced waveguide structures when the background light is absent. These quasi-fixed structures with dark decay times of several days are due to charges trapped in deep traps.

Dates et versions

hal-00327252 , version 1 (07-10-2008)

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Flurin Juvalta, Bozena Koziarska-Glinka, Mojca Jazbinsek, G. Montemezzani, Kenji Kitamura, et al.. Deep UV light induced, fast reconfigurable and fixed waveguides in Mg doped LiTaO3. Optics Express, 2006, 18, pp.8278-8289. ⟨10.1364/OE.14.008278⟩. ⟨hal-00327252⟩
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