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import matplotlib.pyplot as plt
import numpy as np

# Example: E-field in TE mode
x = np.linspace(-10, 10, 100)
y = np.linspace(-10, 10, 100)
X, Y = np.meshgrid(x, y)
Z = np.sin(X) * np.cos(Y)  # Example of a simple E-field pattern

plt.figure(figsize=(6, 6))
plt.contourf(X, Y, Z, cmap='coolwarm')
plt.colorbar(label="E-field")
plt.title("TE Mode - Electric Field")
plt.xlabel("X-axis")
plt.ylabel("Y-axis")
plt.show()