High frequency excitation waveform for efficient operation of a xenon excimer dielectric barrier discharge lamp

被引：15
|
作者：
Beleznai, Sz [1 ]
Mihajlik, G. [1 ]
Maros, I. [2 ]
Balazs, L. [2 ]
Richter, P. [1 ]
机构：
[1] Budapest Univ Technol & Econ, Dept Atom Phys, H-1111 Budapest, Hungary
[2] GE Consumer & Ind Lighting, H-1344 Budapest, Hungary
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2010年 / 43卷 / 01期
关键词：
RADIATION; PLASMA;
D O I：
10.1088/0022-3727/43/1/015203
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The application of a high frequency (similar to 2.5 MHz) burst (amplitude-modulated sinusoidal) excitation voltage waveform is investigated for driving a fluorescent dielectric barrier discharge (DBD) light source. The excitation waveform presents a novel method for generating spatially stable homogeneous Xe DBD possessing a high conversion efficiency from electrical energy to VUV Xe(2)* excimer radiation (similar to 172 nm), even at a significantly higher electrical energy deposition than realized by pulsed excitation. Simulation and experimental results predict discharge efficiencies around 60%. Lamp efficacy above 74 lmW(-1) has been achieved. VUV emission and loss mechanisms are investigated extensively and the performance of burst and pulsed waveforms is compared both theoretically and experimentally.
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页数：9
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