Proposal for a new UV-light generating device based on cold electron emission
作者:
Dan Nicolaescu,
Valeriu Filip,
Fumio Okuyama,
期刊:
Journal of Vacuum Science&Technology A: Vacuum, Surfaces, and Films
(AIP Available online 1998)
卷期:
Volume 16,
issue 5
页码: 2885-2889
ISSN:0734-2101
年代: 1998
DOI:10.1116/1.581435
出版商: American Vacuum Society
关键词: Si
数据来源: AIP
摘要:
A new device intended for UV-light generation and based on cold electron emission is proposed and analyzed theoretically. The device operation is based on the excitation by the field emitted electrons of the surrounding nitrogen(N2)molecules, which in turn emit UV light. The device should operate at low pressures compatible with field emission. The proposed device involves electrons moving in crossed electricEand magneticBfields. Equations for the electron time evolution (both radial and angular position) are obtained. When moving inside the device, the electron has a periodical cycloid-like trajectory which is always confined between two coaxial cylinders. The inner cylinder has the same radius and position with the circular array of emitters used for electron generation. The position of the outer cylinder (and so the width of the confinement zone) is controlled byEandB.The described analytical-numerical approach is used to analyze the device operation as function of model parameters.
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