Exponential mapping-based design method of retro-reflective optical invisibility cloak
A design method and exponential technology, applied in the field of transformation optics, to achieve the effect of simple form and convenient manufacturing
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[0019] combine figure 2 , the present invention is based on the method for the design of the retroreflective optical cloak of index mapping, and the steps are as follows:
[0020] Step 1: If figure 1 The two-dimensional x-y plane coordinate system is established as shown, and the radius is R 2 Coordinates are conformally mapped within the range of . R 2 The value is determined according to actual needs, such as 5-10 microns. figure 1 It mainly explains the establishment of the coordinate system and the simulation of the trajectory of the light passing through the cloak.
[0021] Step 2: Parallel incidence of a beam of plane waves from the negative direction of the x-axis to the positive direction of the x-axis. For example, the wavelength of a beam of plane waves can be 500-700 nanometers.
[0022] Step 3: Perform linear mapping in polar coordinates on the second and third quadrants of the coordinate system where the invisibility cloak is located, so that the radius ran...
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