The field emission cold cathode X-ray source based on nano materials has emerged in recent years. It is considered to be a revolutionary new X-ray source technology that can replace the hot cathode technology. It has many advantages such as high spatial r
Graphene plasmon and 2D nanomaterial’s optical properties
Graphene plasmons have high compression ratios, great local optical field enhancement, and are electrically tunable (tunable from terahertz to mid-infrared). However, due to the single-atom-layer two-dimensional structure of graphene (each atom is in a s
