| 1. | All fibers are more or less doubly refractive .
所有纤维都具有程度不同的双折射。 |
| 2. | The function n(x, y)is known as the refractive index profile .
函数n（x，y）称为折射率分布。 |
| 3. | The refractive index n(x) varies gradually over the cross-section of the guide .
折射率n（x）在波导截面内是逐渐变化的。 |
| 4. | Optical interference takes place in a thin transparent wedge of refractive index m .
光的干涉发生在折射率为m的薄的透明的楔形物里。 |
| 5. | A planar film of refractive index nf is sandwiched between a substrate and a cover material .
折射率为nf的平面薄膜夹在感光衬底和覆盖层之间。 |
| 6. | an inconvenience of prism couplers is that the prism material must have a high refractive index .
棱镜耦合器的一个不方便的地方是棱镜材料必须有较高的折射率。 |
| 7. | Additional contributions to the refractive index are expected to come from the dopant(6. 8)as well as from the electro-optic effect .
预料其它对折射率的影响来自掺杂剂以及电光效应。 |
| 8. | Numerical calculations have been made for wave-guides with a core of rectangular cross-section embedded in a uniform surround of lower refractive index .
对于掩埋在较低折射率的均匀介质中的距形截面芯子的波导曾作过数值计算。 |
| 9. | Test methods for refractive index of chemical products
化学制品折射率的试验方法 |
| 10. | Determination of refractive index of technical quinoline
工业喹啉折射率测定方法 |
