Skip to Content
Back

TM vs TE polarization

Getting Started

In 2D, Maxwell decouples into two independent scalar problems. TM has the electric field out of plane (EE along zz), TE has the magnetic field out of plane. The two polarizations see the same geometry but produce very different band structures, especially for high-contrast rod or hole lattices. Passing a list of polarizations expands the call into a sweep, one BandResult per polarization.

Explorer
▾tm-vs-te/
polarizations.py
1import blaze
2
3# Pass a list of polarizations to compute both in one sweep.
4results = blaze.solve(
5    lattice_type="square",
6    epsilon_background=1.0,
7    epsilon_atoms=8.9,
8    radius_atom=0.2,
9    polarization=["TM", "TE"],
10    n_bands=8,
11)
12
13for r in results:
14    print(r.polarization, r.freqs[:, 0].max())

Band diagram

Run the example to see the band diagram.

Result · list[BandResult] (0)

Result
results:list[BandResult] (0)
Examples