WarpX includes several example Python input files corresponding to various physical situations. These can be downloaded here (or obtained from the WarpX source).
Without mesh refinement<../../../Examples/Physics_applications/plasma_acceleration/PICMI_inputs_plasma_acceleration.py>
With mesh refinement<../../../Examples/Physics_applications/plasma_acceleration/PICMI_inputs_plasma_acceleration_mr.py>
Without mesh refinement<../../../Examples/Physics_applications/laser_acceleration/PICMI_inputs_laser_acceleration.py>
There are also several test cases included that can be used for reference.
Gaussian beam<../../../Examples//Modules/gaussian_beam/PICMI_inputs_gaussian_beam.py>
Langmuir plasma wave test in 3d<../../../Examples//Tests/Langmuir/PICMI_inputs_langmuir_rt.py>
Langmuir plasma wave test in RZ<../../../Examples//Tests/Langmuir/PICMI_inputs_langmuir_rz_multimode_analyze.py>
Langmuir plasma wave test in 2D<../../../Examples//Tests/Langmuir/PICMI_inputs_langmuir2d.py>