Fig. 2: Measurement of FOVs of the HSPRM system.
From: Flexible hyperspectral surface plasmon resonance microscopy
a Three spectral SPR images of a patterned SPR chip measured using the HSPRM system with a NA = 0.4 imaging lens fixed at d = 7 mm from the prism. The FOVs of three images corresponding to the 5x, 10x and 20x objectives are 0.884 mm2, 0.145 mm2 and 0.042 mm2, respectively. b Similar results measured in the case of fixing the NA = 0.4 imaging lens at d = 4 mm from the prism. The FOVs of three SPR images are 0.049 mm2, 0.010 mm2, and 0.003 mm2, respectively. In each image, the green areas are the exposed gold film and the red areas are the photoresist-covered gold film. At least three measurements were performed on different samples with similar results.
