Surface coupling induced ionization technique and its corresponding plasma and plasma devices

A surface coupling induced ionization technique, comprising any of the following steps:

• (1) feeding a first electromagnetic wave beam to a material via a free space or waveguide, such that the first electromagnetic wave beam resonates with surface plasma of the material and surface plasma waves are excited;
• wherein target molecules to be ionized are introduced to a surface of the material, and by controlling the interaction between the surface of the material and the target molecules, electrons of the target molecules are coupled with surface plasmons on the material to induce the ionization of the target molecules;
• (2) feeding second and subsequent electromagnetic wave beams to an ionization area of the target molecules on the surface of the material synchronously via the free space or waveguide such that the ionized target molecules absorb the electromagnetic waves to improve the degree of ionization of the target molecules;
• and
• (3) releasing the target molecules in the form of bulk phase plasma to realize surface coupling induced ionization.