Patent ID: 9185788
Filing Date: 2015-11-10
Classification: H01J,H05G,H05H

Abstract:
1. A plasma cell for controlling convection comprising: a transmission element having one or more openings, one or more flanges disposed at the one or more openings of the transmission element and configured to enclose the internal volume of the transmission element in order to contain a volume of gas within the transmission element, the transmission element configured to receive illumination from an illumination source in order to generate a plasma within a plasma generation region of the volume of gas, wherein the plasma emits broadband radiation, wherein the transmission element of the plasma cell is at least partially transparent to at least a portion of the illumination generated by the illumination source and at least a portion of the broadband radiation emitted by the plasma; a top flow control element disposed above the plasma generation region and within the transmission element, the top flow control element including one or more internal channels configured to direct at least a portion of a plume of the plasma upward; a bottom flow control element disposed below the plasma generation region and within the transmission element, the bottom flow control element including one or more internal channels configured to direct gas upward toward the plasma generation region; and the top flow control element and the bottom flow control element are arranged within the transmission element to form one or more gas return channels for transferring gas from a region above the plasma generation region to a region below the plasma generation region.