# frequencies
f_min:
    val: 1.0
    unit: Hz

f_max:
    val: 200.0
    unit: Hz

df:
    val: 1.0
    unit: Hz

# wavenumbers
k_min:
    val: 1.0
    unit: 1 / mm

k_max:
    val: 100.0
    unit: 1 / mm

dk:
    val: 0.5
    unit: 1 / mm