Light-induced phase and amplitude gratings in centrosymmetric Gadolinium Gallium garnet doped with calcium.
نویسندگان
چکیده
The photosensitive properties of a centrosymmetric gadolinium gallium garnet crystal doped with calcium are investigated at room temperature. Elementary holograms can be recorded over a wide range of wavelengths in the visible spectral range. The photosensitive properties are studied experimentally using beam coupling and angular response experiments. Mixed absorption and refractive-index gratings are observed and their amplitudes and relative phases determined. Moreover, the candidate centers that are responsible for the photorefractive effect are discussed.
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عنوان ژورنال:
- Optics express
دوره 14 2 شماره
صفحات -
تاریخ انتشار 2006