A micro-hollow cathode discharge device. The device includes a first electrode layer comprising a first electrode. A hole is disposed in the first electrode layer. The device also includes a dielectric layer having a first surface that is disposed on the first electrode layer. The hole continues from the first electrode layer through the dielectric layer. The device also includes a semi-conducting layer disposed on a second surface of the dielectric layer opposite the first surface. The semi-conducting layer is a semiconductor material that spans across the hole such that the hole terminates at the semi-conducting layer. The device also includes a second electrode layer disposed on the semi-conducting layer opposite the dielectric layer.

An inductively coupled plasma (ICP) torch is described that facilitates laminar flow of a cooling gas introduced by a plurality of input ports between an outer tube and an inner tube configured to surround an injector for introduction of an aerosolized sample to a plasma. A system embodiment includes, but is not limited to, an inner tube; and an outer tube surrounding at least a portion of the inner tube to form an annular space, the outer tube defining a plurality of inlet ports for introduction of a cooling gas into the annular space as a laminar flow via each inlet port of the plurality of inlet ports.

A device for cold plasma endoscopy may include a cold plasma generating system, a catheter and electrically conductive means. The cold plasma generating system includes a gas source, an electrical source, a dielectric chamber, a first electrode surrounding the dielectric chamber and electrically connected to the electrical source. The catheter has a first lumen for carrying the cold plasma fluidly connected to the dielectric chamber at a proximal end and having an opening at a distal end for delivering the cold plasma. The electrically conductive means extend inside the first lumen. The electrical source is configured to apply a pulsed excitation signal to the first electrode. The device includes remotely actuated deployable confinement means for creating a confined space, wherein the opening of the first lumen is arranged in the confined space, the deployable confinement means allowing for confining the plasma substantially within the confined space.

In an active gas generation apparatus of the present invention, an auxiliary conductive film provided on a first electrode dielectric film is provided to overlap part of an active gas flow path in plan view, and the auxiliary conductive film is set to the ground potential. An active gas auxiliary member provided on a second electrode dielectric film is provided to fill part of the active gas flow path between a discharge space and a gas ejection hole in a dielectric space between the first and second electrode dielectric films in order to limit to an active gas flow gap.

A system for surface treatment of a cylindric workpiece using an atmospheric pressure plasma generator according to an embodiment of the present disclosure includes a rotary plasma generator including a nozzle from which plasma is discharged, and a body to and from which the nozzle is attached and detached, and a plasma beam guide tap attached to one side of the nozzle about a rotation axis of the nozzle, in which the plasma beam guide tap is configured to discharge a plasma beam to at least a portion of a side of the workpiece while a rotation axis of the rotary plasma generator is aligned with a central axis of the cylindric workpiece.

A system for surface treatment of a cylindric workpiece using an atmospheric pressure plasma generator according to an embodiment of the present disclosure includes a rotary plasma generator including a nozzle from which plasma is discharged, and a body to and from which the nozzle is attached and detached, and a plasma beam guide tap attached to one side of the nozzle about a rotation axis of the nozzle, in which the plasma beam guide tap is configured to discharge a plasma beam to at least a portion of a side of the workpiece while a rotation axis of the rotary plasma generator is aligned with a central axis of the cylindric workpiece.

A system for creating a plasma field Faraday cage around a structure, the system comprising a plurality of lasers spaced apart from each other, each laser being configured to transmit an electromagnetic energy beam to a focal point of an atmosphere region, each electromagnetic energy beam having an amount of energy less than an amount of energy required to ionize air, the electromagnetic energy beams intersecting at the focal point such that the electromagnetic energy beams cooperatively ionize the air at the focal point to block electromagnetic radiation from passing through the focal point.

A plasma actuator includes a first electrode disposed on a substrate, covered by a dielectric layer, and a second electrode disposed on the dielectric layer. In operation, the plasma actuator creates a plasma region, altering air flowing over the actuator. The plasma actuator in various embodiments: has no moving parts, helps to improve fuel economy by reducing aerodynamic drag, improves vehicle stability control under severe unsteady flow environments, reduces wind noise around a vehicle on which the actuator is used, and reduces emission and CO2 foot print through the fuel economy improvement.

A beauty care or skin treatment apparatus using plasma includes: a body having a handle part on which a ground is formed; an electrode unit which is formed on one surface of the body and forms atmospheric plasma by application electric power thereto; an image input unit which is provided in the body so as to photograph an image of the skin which faces the image input unit; and a transmission unit which is configured to transmit an image signal inputted from the image input unit to a terminal connected thereto.

A method for the treatment of teeth which comprises enhancing transport of substances through the tooth enamel by generating a gaseous plasma in proximity to the tooth.