Fig. 3: Dependence of the Brillouin light scattering (BLS) enhancement on the silicon disk diameter.
From: Observing high-k magnons with Mie-resonance-enhanced Brillouin light scattering

a Relative scattering intensities of five selected silicon disks measured using dark-field optical spectroscopy. The dashed line marks the 532 nm wavelength of the μ-BLS laser. Dependence of half-width-at-tenth-maximum (HWTM, maximum detectable k-vector) (b) and integrated detection function (BLS signal enhancement) (c) on the diameter of the silicon disk. The arrows and colored points refer to the diameters with elastic scattering spectra shown in (a).