Fig. 8.
Digital photograph of (a) the crickets (35 mm and 50 mm in length, and 5.5 mm and 7 mm in thickness) and (b) the crickets buried in noodle flour. (c) Clipped image from a continuous-wave (CW) sub-THz transmission image by the polygonal mirror scanning method (full-width at half-maximum [FWHM] of a focused beam: 4.13 mm, Frame rate: 0.32 frame/s over 250 × 180 pixels2 with 1.15 mm/pixel resolution), where a unit of the intensity legend is a percentage. (d) A CW sub-THz transmission image obtained by conventional motorized point scanning method (FWHM of a focused beam: 2.65 mm, frame rate: 0.024 frame/min over 160 × 110 pixels2 with 0.5 mm/pixel resolution), where a unit of the intensity legend is arbitrary.