Fig. 5
a GC-BSW sensor reflection versus azimuthal and polar angles. BSW created by illuminations (λ0 = 633 nm) near θ = 7° and φ = 10°. BSW coupling occurs in very narrow areas (white region) with relatively low reflective intensity. b Electric field (black line) and refractive index distribution (dark green dotted line) inside sensing configurations (case 2 mode). c x-y d x-z plane views of electric field magnitude map, computed at operational wavelength λ0 = 633 nm. White dotted line indicates the locations of the holes in the electric field