We have investigated the guide modes in two kinds of two_dimensional photonic crystal heterostructures by using the plane wave expansion method combined with the supercell technique.
利用平面波展开方法与超原胞方法研究了两种不同晶格的光子晶体异质结的界面态。
The next topic is camera calibration and we give an ordinary way to calibrate and two calibration method of using one model plane.
首先介绍摄像机的透视投影模型，并讲述了普通摄像机标定的方法和两种平面模板的标定方法。
To solve the problem, we put forward a method that can calculate the angular vector between two vectors in a plane rapidly.
为了有效解决该问题，提出了一种能够快速求解同一平面内两个向量之间角度矢量的方法。
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