TUNABLE DUAL- AND MULTI-CHANNEL FILTER BASED ON CANTOR PHOTONIC CRYSTALS EMBEDDED WITH GRAPHENE

We theoretically investigate the tunable dual- and multi-channel filter in one-dimensional aperiodic photonic crystals (PCs) embedded with graphene.The dielectrics slabs arrayed alternately submit to the Cantor sequence rule and graphene sheets are local at the interfaces of dielectrics layers.Cantor PCs are fractal structures and support a series

Abstract Background Many people use handwashing and hand-drying facilities in public washrooms under the impression that these amenities are hygienic.However, such facilities may be potential sites for the transmission of pathogenic bacteria.This study aimed to examine the hygiene facilities provided including handwashing and hand-drying facilities