
    axs[0].set(title='Pupil')
    axs[1].set(title='PSF')
    axs[2].set(title='MTF')

    bbox_props = dict(boxstyle="rarrow", fill=None, lw=1)
    axs[0].text(1.385, 1.07, r'|Fourier Transform|$^2$',
                ha='center', va='center', bbox=bbox_props,
                transform=axs[0].transAxes)
    axs[0].text(3.15, 1.07, r'|Fourier Transform|',
                ha='center', va='center', bbox=bbox_props,