Fig. 3: Greyscale images and RW images of the patterned SPR chip.
From: Flexible hyperspectral surface plasmon resonance microscopy
a Greyscale image at 515 nm wavelength and normalized intensity distributions along the x- and y-axes for the regions labeled A, B and C in the image. The greyscale image was extracted from the hyperspectral datacube acquired with the 20x objective and the NA = 0.4 imaging lens fixed at d = 7 mm from the prism. b Similar results obtained with the 5x objective and fixing the NA = 0.4 imaging lens at d = 4 mm from the prism. c and d RW images and RW distributions along the x-axis and y-axis for the regions labeled A, B and C in each image. The RW images in c and d correspond to the greyscale images in a and b, respectively. The regions labeled A, B, and C in the images have the actual size of 5 μm × 35 μm.
