Changing the orientation of a GaussianPlaneSource

[AlexisJouan]

Hi ! I have started using fdtdx recently, it's really a nice project. I was wondering if it was possible to place a source with an arbritrary orientation? Currently I have the following code

# Create source

source = fdtdx.GaussianPlaneSource(
    partial_grid_shape=(None, None, 1),
    partial_real_shape=(0.9e-6, 0.9e-6, None),
    fixed_E_polarization_vector=(1, 0, 0),
    wave_character=fdtdx.WaveCharacter(wavelength=wavelength),
    radius=3e-6,
    std=1 / 2,
    direction="-",
)

object_list.append(source)
constraints.extend(
    [
        source.place_relative_to(
            volume,
            axes=(0, 1, 2),
            own_positions=(0, 0, 1),
            other_positions=(0, 0, 1),
            margins=(0, 0, -0.5e-6),
        ),
    ]
)

But I would like to emit the wave with an arbitrary angle. Any easy way to do that?

Thanks a lot for sharing your work !

Best,

Alexis

[ymahlau]

Hi @AlexisJouan, you can easily do that by setting the azimuth or elevation angle attribute to a nonzero value. Hope this helps! If you have other questions let me know.

[ymahlau]

This works for plane and gaussian source, mode source currently does not support that feature

[AlexisJouan]

Thanks a lot !