• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced Lassers and Systems; Proceedings of SPIE-The International Society for Optical Engineering; vol.6731 >Holographic Volume Gratings in Dye-Doped Jelly-Like Gelatin
【24h】

Holographic Volume Gratings in Dye-Doped Jelly-Like Gelatin

机译：染料掺杂的果冻样明胶中的全息体积光栅

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Holographic characteristics of a thick self-developing photosensitive medium - dye-doped jelly-like gelatin are investigated by means of pulsed laser exposure. The experiments were performed using aqueous gelatin solutions of Rhodamin 6G with a layer thickness of 1 mm. The slanted holographic gratings were written with two crossed beams from a frequency-doubled (λ = 532 nm) and Q-switched YAG:Nd laser (τ_(0.5) ≈ 17 ns, f ≤ 50 Hz). In the course of recording the hologram was read with the beam from a single-mode He-Ne laser (λ = 632.8 nm) which was not absorbed by the photosensitive medium. The real-time evolution of the grating diffraction efficiency was studied in dependence of the dye and gelatin concentration as well as the writing pulse fluence. It is shown that under appropriate choice of the medium composition and parameters of the recording radiation, it is possible to obtain phase volume holographic gratings with a diffraction efficiency of ～ 87 % and an angular selectivity of ～ 20'.
机译：通过脉冲激光曝光研究了厚的自显影光敏介质-掺杂染料的果冻状明胶的全息特性。实验使用的是Rhodamin 6G的明胶水溶液，层厚为1 mm。倾斜的全息光栅用倍频（λ= 532 nm）和Q开关YAG：Nd激光器（τ_（0.5）≈17 ns，f≤50 Hz）的两个交叉光束写入。在记录过程中，全息图是用来自单模He-Ne激光器（λ= 632.8 nm）的光束读取的，该光束未被感光介质吸收。研究了光栅衍射效率的实时演变，取决于染料和明胶浓度以及写入脉冲通量。结果表明，在适当选择介质成分和记录辐射参数的情况下，可以获得相体积全息光栅，其衍射效率约为87％，角度选择性约为20'。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号