Boundary integral equations for computer aided design of near‐field optics

New forms of boundary integral equations are proposed for computer aided design (CAD) and simulation of near-field optical circuits. These integral equations can be easily solved numerically by using the boundary element method or moment method without using complicated mode-expansion techniques for open waveguide structures. As an example, the new equations are used to design a two-dimensional optical particle manipulator, and the effectiveness and correctness are demonstrated by numerical results.

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