transmission_spectrum = TransmissionSpectrum(
    configuration=device_configuration,
    energies=numpy.linspace(-0.5,0.5,10)*eV,
    kpoints=[[0.0,0.0,0.0],[0.0,1./3.,0.0],[1./3.,-1./3.,0.0],
    [1./3.,0.0,0.0],[1./3.,1./3.,0.0]],
    kpoints_weights = [1.,2.,2.,2.,2.],
    energy_zero_parameter=AverageFermiLevel,
    infinitesimal=1e-06*Units.eV
    )