Terahertz metasurfaces with pixelated meta-atoms were designed for linear-polarization conversion and absorption. The differences between the two functionalities emerged from number arrangement of metal-dielectric combos patching some but not necessarily every pixel each meta-atom. A a meta-atom 3×3 pixels yielded polarization ratio (PCR) >0.9 over 10.20–16.08 THz band, whereas another absorpta...

We present spectropolarimetry of the energetic Type Ic supernova SN 2002ap, taken with the FOCAS mounted on the Subaru Telescope at two epochs, close to and one month later than the visual maximum (2002 February 8). The data show the development of intrinsic linear polarization, in addition to the steady and smooth interstellar polarization. Distinct polarization profiles were seen only in the ...

Gonodactyloid stomatopod crustaceans possess polarization vision, which enables them to discriminate light of different e-vector angle. Their unusual apposition compound eyes are divided by an equatorial band of six rows of enlarged, structurally modified ommatidia, the mid-band (MB). The rhabdoms of the two most ventral MB rows 5 and 6 are structurally designed for polarization vision. Here we...