We report a low-fabrication-complexity and wideband fiber lens,which is formed by fiber facet etching and filling high refractive index UV adhesive.The optical field can be significantly shrunk by the facet lens so as to obtain improved optical coupling.N
The bidirectional error diffusion(BERD) algorithm is free from random phase modulation that introduces speckle noise on the reconstructed images, compared with other computer-generated phase-only holo
In this Letter,Ti–Si bilayer was deposited on white silk to achieve coloration of the silk.By controlling the thickness of the Ti layer and Si layer,the saturation and the hue of the color on the silk could be preciously modulated,respectively.The structu