Laser cleaning of field emitter arrays for enhanced electron emission
Yavas, O. ; Suzuki, N. ; Takai, M.
Woodbury, NY : American Institute of Physics (AIP)
Published 1998
Woodbury, NY : American Institute of Physics (AIP)
Published 1998
| ISSN: |
1077-3118
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
The effect of laser irradiation on the electron emission efficiency of field emitter arrays has been investigated as a function of wavelength using different harmonics of a diode-pumped Nd:YLF laser. While irradiation in the infrared or visible range did not induce any observable change in the emission behavior, ultraviolet laser irradiation, even at a lower fluence compared to infrared or visible, resulted in a significant increase of the emission efficiency, revealing that the photodecomposition of organic contaminants is the main mechanism for cleaning. During laser irradiation, the emission current increases gradually, approaching a saturation level as the surface is cleaned. © 1998 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |