Fig. 7From: Two-Dimensional Hole-Array Grating-Coupling-Based Excitation of Bloch Surface Waves for Highly Sensitive Biosensinga Resonance line shape variations for DG-BSW configuration and extinction coefficients κH = 0 (lossless), 2 × 10−4, 10−4, 10−3, 10−2. b Variations for GC-BSW configuration. Lossless TiO2 materials excite BSW dip peak in the reflection spectrum. Extinction coefficient values suppress BSW resonance band edgeBack to article page