Fig. 6From: Two-Dimensional Hole-Array Grating-Coupling-Based Excitation of Bloch Surface Waves for Highly Sensitive BiosensingAzimuthal reflectance spectra for different incident angles θ. Typical symmetrical line-shapes emerge as azimuthal angle θ increases. The BSW resonances shift to higher azimuthal angles due to wave vector matching effectBack to article page