Trotta, Marco and Asquini, Rita and d'Alessandro, Antonio and Beccherelli, Romeo (2011) All-optical liquid crystal waveguide on silicon. Molecular Crystals and Liquid Crystals, 549. pp. 100-105. ISSN 1563-5287
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Abstract
In this paper we demonstrate nonlinear optical properties of a channel waveguide made of E7 nematic liquid crystal infiltrated in a SiO2/Si V-groove. Light in C-Band (1530-1565 nm), fiber coupled to the core of the liquid crystal waveguide, was optically modulated by the optical beam itself, with a power below 25 mW. A bias voltage was applied to induce a liquid crystal orientation over the Freedericksz threshold and a further director reorientation was obtained by increasing the optical beam. The effect of optical modulation for different applied voltages obtained experimentally was modelled including both opto and electro-optical effects.
| Item Type: | Article |
|---|---|
| Subjects: | 600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini |
| Depositing User: | Matteo Viola |
| Date Deposited: | 12 Mar 2013 16:24 |
| Last Modified: | 21 Mar 2013 17:42 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/4553 |
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