Fig. 3From: Fabrication-friendly polarization-sensitive plasmonic grating for optimal surface-enhanced Raman spectroscopya SEM image of the fabricated grating with ff = 0.61; b Bright-field reflection spectra of the fabricated grating with ff = 0.47. The red and black curves present the cases for TM and TE polarizations, respectively; c Effect of ff on the ‘bluest’ reflection minimum of the fabricated gratings for TM polarized excitationBack to article page