Self-Imaging Holographic Optical Waveguides

H. Grebel, J. L. Graziani, S. Vijayalakshmi, L. Shacklette, K. Stengel, L. Eldada, R. Norwood, J. Yardley
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Abstract

Periodic structures exhibit an effect known as self-imaging[1-3]. The complex, amplitude distribution of the field, u(x,y,z) is self-similar such that, u(x,y,z) = u(x,y,z + L s ). Here we address self-imaging by use of transverse gratings which extend throughout the entire waveguide (Figure 1). By use of photolithographic techniques in photopolymers, one has a simple means to match waves having dissimilar propagation constants without much loss.
自成像全息光波导
周期结构表现出称为自成像的效应[1-3]。场u(x,y,z)的复振幅分布是自相似的,使得u(x,y,z) = u(x,y,z + ls)。在这里,我们通过使用贯穿整个波导的横向光栅来解决自成像问题(图1)。通过在光聚合物中使用光刻技术,人们有一种简单的方法来匹配具有不同传播常数的波,而不会有太多损失。
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