Investigation of a Reflective Counter-Propagating Holographic Setup
Investigation of a Reflective Counter-Propagating Holographic Setup
复制标题
反射式反向传播全息装置的研究
DOI：
10.1143/jjap.48.03a026
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发表时间：
2009
影响因子：
1.5
通讯作者：
H. Richter
中科院分区：
文献类型：
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作者：
J. Knittel;F. Przygodda;Oliver Malki;H. Trautner;H. Richter
提出了一种用于光学数据存储的反射式反向传播全息装置。该系统通过使用参考光束来生成信号光束，从而有效地利用激光。穿过全息介质后，参考光束被发送到空间光调制器，该调制器将修改后的参考光束引导回全息介质，在那里它与原始参考光束发生干涉。因此，100% 的可用激光功率可用于参考光束。此外，还引入了特殊的随机相位掩模和相应的数据页格式。与误差仅为±0.1像素的传统二元相位掩模相比，该相位掩模具有改进的±0.5像素的对准误差。此外，掩模仍然提高了位移选择性并消除了傅立叶平面中的强强度峰值。我们研究了位移选择性，并比较了通过二维快速傅里叶变换 (2D-FFT) 体积积分方法获得的实验结果和模拟结果。
A reflective counter-propagating holographic setup for optical data storage is presented. The system makes efficient use of the laser light by using the reference beam to generate the signal beam. After passing through the holographic medium, the reference beam is sent onto a spatial light modulator that directs the modified reference beam back into the holographic medium, where it interferes with the original reference beam. Thus 100% of the available laser power can be used for the reference beam. Furthermore, a special random phase mask and a corresponding data page format are introduced. The phase mask has an improved alignment tolerance of ±0.5 pixels in contrast to a conventional binary phase mask that has a tolerance of only ±0.1 pixels. Moreover, the mask still improves the shift-selectivity and eliminates the strong intensity peak in the Fourier plane. We investigate the shift selectivity and compare experimental and simulated results that were obtained with a two-dimensional fast-Fourier-transform (2D-FFT) volume integral method.
DOI：
--
发表时间：
2006
期刊：
Applied Optics 45
影响因子：
--
作者：
O.Matoba;Y.Yokohama;M Miura;K Nitta;T Yoshimura
通讯作者：
T Yoshimura