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kch3782 / torcwa

GPU-accelerated RCWA with automatic differentiation
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multiple patterns within a single layer #16

Closed MahmutRuzi closed 1 year ago

MahmutRuzi commented 1 year ago

Hello, Thanks for sharing the code.
Are there any way to include multiple patterns within the same layer ? For example, two rectangles (or ellipses) of the same height within a layer separated by a given distance d . The idea is study the effect of coupling between these structures. One such example is shown in Figure 1 of this article https://doi.org/10.1002/adom.202200812.

kch3782 commented 1 year ago

To combine two patterns, you can use the rcwa_geo.union(p1, p2) function as below.

e1 = torcwa.rcwa_geo.ellipse(Rx1, Ry1, Cx1, Cy1, theta1) e2 = torcwa.rcwa_geo.ellipse(Rx2, Ry2, Cx2, Cy2, theta2) pattern = torcwa.rcwa_geo.union(e1,e2)

Here, Rx, Ry are x- and y-direction radius, Cx, Cy are center point, and theta is rotation angle in radian (center of rotation is [Cx, Cy]).

Also, the functions rcwa_geo.intersection(p1,p2), rcwa_geo.difference(p1,p2) are provided in rcwa_geo.

Thank you.

MahmutRuzi commented 1 year ago

Awesome ! Thank you for the quick response.