Variable bandgap conjugated donor–acceptor small molecule thin films show absorption spectra similar to those of human eye's photoreceptors. Photoactive devices interfaced with a bio-electrolyte reveal capacitive photocurrent response making them suitable for future full-colour retinal prosthesis.

We present a chip-based optical beam scanner based on dispersive phased array (OPA) that illuminates the far field with pixelated pattern. To scale up OPA to large number of antennas, we break it into manageable blocks acceptable losses. The 2D wavelength scanning within block is handled by delay lines. Between blocks, there are no lines, and will only have constructive interference for discret...

Abstract A novel surface-flow filter has been designed to take advantage of a combination both diffusion and lateral flow permeation, since active coatings, even if porous, tend be far less permeable than through-flow constructs. The formation continuous coating layer virtually excludes any fluid transport into the other by planar for gases or capillarity liquids. This study considers additiona...