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首页> 外文会议>Sixth International Symposium on Optical Storage (ISOS 2002) Sep 22-25, 2002 Wuhan, China >Study on laser holographic storage medium Bi_(12)SiO_2 crystal
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Study on laser holographic storage medium Bi_(12)SiO_2 crystal

机译：激光全息存储介质Bi_（12）SiO_2晶体的研究

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摘要

Ce: Cu: BSO crystal co-doped with CeO_2 and CuO has been grown by the Czochralski method. The lattice constants, absorption spectrum, exponential gain coefficient, diffraction efficiency and respond time are measured. The lattice constants of Ce: Cu: BSO crystal are always larger than that of BSO crystal. Due to Ce and Cu ionic radii are larger than that of Bi~(3+) and Si~(4+), the lattice constants of doped crystal are larger than that of BSO crystal, thus make the absorption edge shift to the longer wavelength spectral range. The results indicate that the photorefraction of Ce: Cu: BSO crystal improves and the exponential gain coefficient and diffraction efficiency of Ce: Cu: BSO crystal improves two times compared with that of undoped BSO crystal. Furthermore, the photorefractive effect and the holographic storage effect of Ce: Cu: BSO crystal is better than that of undoped BSO crystal.
机译：Ce：Cu：通过Czochralski法生长了共掺有CeO_2和CuO的BSO晶体。测量了晶格常数，吸收光谱，指数增益系数，衍射效率和响应时间。 Ce：Cu：BSO晶体的晶格常数始终大于BSO晶体的晶格常数。由于Ce和Cu的离子半径大于Bi〜（3+）和Si〜（4+），因此掺杂晶体的晶格常数大于BSO晶体的晶格常数，从而使吸收边向更长的波长偏移光谱范围。结果表明，与未掺杂的BSO晶体相比，Ce：Cu：BSO晶体的光折射提高，并且Ce：Cu：BSO晶体的指数增益系数和衍射效率提高两倍。此外，Ce：Cu：BSO晶体的光折变效应和全息存储效应要优于未掺杂的BSO晶体。

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