Title: | A new method of electrical fixing in strontium-barium niobate crystals | Authors: | Wesner, M. Herden, C. Kip, Detlef |
Language: | eng | Issue Date: | 2001 | Publisher: | Optical Society of America | Document Type: | Conference Object | Journal / Series / Working Paper (HSU): | OSA trends in optics and photonics : TOPS | Publisher Place: | Washington, DC | Conference: | Photorefractive Effects, Materials, and Devices 2001 | Abstract: | We suggest a new method of electrical fixing in strontium-barium niobate (SEN) crystals. The method takes advantage of the large difference of the extraordinary refractive index in poled compared to unpoled SEN samples. A SEN crystal that is locally depolarized can guide extraordinarily polarized light inside the depoled crystal areas. A local depoling of the crystal is achieved with the help of light-induced screening of an externally applied electric field. By applying a suitable external electric field, the polarization can be reversed outside the illuminated area, while the reversal inside is prevented. At the boarders between illuminated and non-illuminated regions depolarized areas can form, resulting in waveguiding channels for extraordinarily polarized light. © 2001 Optical Society of America |
Organization Units (connected with the publication): | Universität Osnabrück | ISBN: | 1-55752-693-1 | Publisher DOI: | 10.1364/PEMD.2001.152 |
Appears in Collections: | 6 - Publication references (without fulltext) of your publications before HSU |
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