Abstract:
The object of this invention is to provide a phase stabilization device for stimulated brillouin scattering-phase conjugate mirrors and a light amplification apparatus using the phase stabilization device. A light amplification apparatus of the present invention includes a polarizer (70) for polarizing light beams reflected from a plurality of stimulated brillouin scattering-phase conjugate mirrors and causing the light beams to interfere with each other. A detector (80) acquires an interfering beam resulting from interference of the polarizer (70), and outputs the interfering beam. A phase controller (90) controls phase using the interfering beam acquired by the detector. Therefore, the apparatus of the present invention can stably lock the phase for a long period of time, and can be used in various industries and for scientific research in cases where a high repetition rate and high power are required.
Abstract:
The present invention relates to a liquid medium plasma discharge generating apparatus, and has the aim of providing a microtube liquid medium plasma discharge generating apparatus, capable of applying a high electric field even with low wattage by minimizing conduction current, by filling a liquid medium in a gap between a power electrode and a ground electrode and arranging a dielectric diaphragm member, defining one or more holes or slits, in the middle of the gap. To achieve the above aim, the present invention provides a liquid medium plasma discharge generating apparatus comprising: a main body; a power electrode, provided at one side within the main body, for receiving electric power; a diaphragm member provided within the main body, and consisting of a dielectric defining one or more holes or slits; and a liquid medium charged inside the main body, wherein a ground electrode may be further provided in the main body, opposite the power electrode with the diaphragm member therebetween, whereupon the diaphragm member is arranged contacting the ground electrode.
Abstract:
An underwater capillary plasma device having a gas channel is provided. The underwater capillary plasma device includes a power supply unit configured to supply a power source, a discharge electrode configured to receive the power source supplied from the power supply unit and induce capillary plasma discharge inside a fluid, and a gas supply unit configured to inject an auxiliary gas into the discharge electrode. Since the underwater capillary plasma discharge electrode is equipped with a gas channel, plasma species can be generated from water decomposition caused by plasma discharge, and various chemical reactive species can be generated according to the injected auxiliary gas, thereby effectively removing underwater pollutants. Also, when a gas is injected as described herein, the reactive species generated by the plasma discharge can be increased in concentration and lifetime in the fluid so that a purification effect using plasma can be maximized. Further, when the auxiliary gas is supplied as described above, plasma can be generated even by a smaller supply of power, compared with when the auxiliary gas is not injected, thereby reducing energy consumption for purification of the fluid.