The latest research paper titled “A low-power magnetic-field-assisted plasma jet generated by dielectric-barrier discharge enhanced direct-current glow discharge at atmospheric pressure”, written by Plasma Research Group under the leadership of Dr. Tang Jie from State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics (XIOPM), CAS, was published on the latest issue of top international journals in the field of applied physics--Applied Physics Letters (APL) again. Up to now, the said group has published 6 academic theses on APL, which was unprecedented in the history of XIOPM.
By virtue of advantages of high chemical reactivity and dispensation with vacuum equipment, low temperature plasma at atmospheric pressure was paid extensive attention in recent years in the fields like industrial materials surface treatment, biomedical sterilization and disinfection as well as environmental protection and purification. Glow discharge plasma at atmospheric pressure, relying on its moderate power density and discharge uniformity characteristics, was regarded as the best choice in plasma surface treatment and medical environmental protection application, and dielectric-barrier discharge and direct-current glow discharge are the main ways to generate glow discharge plasma at atmospheric pressure. In order to avoid partial firing of the processed sample and promote work efficiency of plasma processor effectively, developing and researching plasma of large area and uniform dispersion have become one of current main research directions in the field of low temperature plasma.
As theoretical and experimental research of glow discharge plasma at atmospheric pressure are still in the initial phase, and its physical process and mechanism are still unclear, discharge parameter selection of dielectric-barrier discharge is blind, and it’s more difficult to obtain and control glow discharge of uniform dispersion comparing with filamentary dielectric-barrier discharge. While in the process of direct-current glow discharge, to prevent it from converting to arc discharge, current-limiting resistance is set, which makes most electric energy consumed on the resistance in the form of joule heat and leads to low energy efficiency. All these disadvantages block the application of glow discharge at atmospheric pressure in the fields like industry, medical and environmental protection.
Plasma Research Group, led by Dr. Tang Jie, with the support of CAS’s programs like Innovation Team International Cooperation Partnership of State Key Laboratory of Transient Optics and Photonics, XIOPM, focusing on the difficulty about how to generate plasma of uniform dispersion under low-power condition, carried out in-depth theoretical and experimental research work in respect of design and characterization of plasma generator and has made a number of breakthroughs.
Dr. Tang Jie, the principal of the discipline orientation and research group, majored in Optics at XIOPM and graduated in 2011 as a doctor, with researcher Zhao Wei and Professor Duan Yixiang as his teachers and researcher Wang Yishan as instructor after work. Dr. Tang Jie is mainly engaged in the research on LIBS, RS, LIBRAS, plasma combustion, plasma materials surface treatment and gas discharge numerical simulation of plasma at atmospheric pressure, which can be applied to geological survey, petroleum exploitation, power generation, deep space detection, promotion of engine combustion efficiency, treatment of environmental pollution, materials surface modification, biological sterilization and disinfection, medical tumor cancer treatment, diabetes examination, etc.
Under the condition that there’s no research foundation in XIOPM, Dr. Tang Jie started from scratch, concentrated on research and obtained series of breaking research achievements, which received nods from domestic peers and developed a new study field for XIOPM. The relevant theses written by Dr. Tang Jie was published on international leading periodicals in succession, such as Appl. Phys. Lett.(6 in total), Phys. Plasmas, Plasma Sources Sci. Technol., Applied Spectroscopy Reviews and IEEE Trans. Plasma Sci. Dr. Tang Jie also applied for 7 patents, of which 3 has been authorized approval. His research achievements were exhibited on 2013 The 16th National Plasma Science and Technology Conference held in Shanghai and The 2nd Plasma at Atmospheric Pressure and Application Seminar held in Dalian, and attracted special attention and high appreciation from domestic peer experts. The research he was engaged in not only filled gaps of XIOPM Optics in the field of raman spectral material detection and analysis but created research orientations for XIOPM Plasma on plasma combustion, plasma materials surface treatment, gas discharge numerical simulation of plasma at atmospheric pressure, which laid an important foundation for XIOPM in development and application research of new discipline of plasma.
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