Figure 2 | Scientific Reports

Figure 2

From: Quantitative polarization-sensitive super-resolution solid immersion microscopy reveals biological tissues’ birefringence in the terahertz range

Figure 2

Polarization-sensitive 0.6 THz (\(\lambda = 500\) µm) SI microscopy of test objects. (a–d) Photo, optical microscopy, and THz images, respectively, of a free-standing metal-wire grid with the strongly sub-wavelength period of \(\simeq 0.06 \lambda \). In these THz images, individual wires cannot be resolved, while their anisotropic effective THz response is obvious. (e–h) Equal data for a free-standing metal-wire with the mesoscale period of \(\simeq 0.4 \lambda \). In these THz images, individual wires are resolved, and optical anisotropy of THz-wave scattering on wires is evident. (i–k) Photo and THz images of the 3D printed GPI RAS logo.

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