Their influence depends on the direction reflections propagate along the waveguide and on the configuration of the attenuator.
Markedly different from previously reported metasurfaces, the square PGM is characterized by four-direction reflection beams.
By scanning the double-fiber assembly in one-direction, reflection properties of different curved surfaces are investigated.
By scanning the double-fiber assembly in one-direction reflection properties of different color liquids are investigated.
Beamforming [8,24], which is a simple and robust means of spatial filtering, can be used to suppress any signal from noise or the direction of reflection; therefore, it is effective for dereverberation [13,25].
Other transformations important for the study of symmetry are translation (a shift of the object in some direction), rotation, reflection, stretch (magnifying or shrinking), and their combinations [ 45].
In this paper, a four-direction anomalous reflection metasurface is proposed.
The photonic band structures of these slabs show several gaps for the two symmetry directions for reflection through the z-plane.
These characteristic curves are expressed as zero sets of bivariate rational functions and include silhouette curves and isoclines from a prescribed viewing direction and/or point, reflection lines and reflection ovals, and highlight lines.
where ψ r is the angle between the specular reflection direction and the scattering direction, and α r is a parameter that sets the width of the scattering lobe.
After the patterning by SART-NIL method using ETFE film as mold, (h00) reflections in the q z direction and (010) reflection in the q xy direction are observed yet (Fig. 4b, c), indicating sole edge-on molecular orientation which is similar to the chain alignment of unimprinted P3HT thin film.
