Table 2 Comparison of theoretical and experimental virtual imaging plane positions

From: Label-free super-resolution imaging of adenoviruses by submerged microsphere optical nanoscopy

Sphere type and size

Theoretical imaging plane position (µm below target)

Experimental imaging plane position (µm below target)

50 µm PS

12.75–17.32

15–20

50 µm BaTiO3

37.5–63

25–35

100 µm BaTiO3

75–126

60–70

  1. Abbreviation: PS, polystyrene.