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Abstract:
The authors propose a novel technique to produce sub-millimeter radiation; this technique mingles two electron beams of slightly different energies. On their own, these beams will exhibit a two-stream instability. Proper initial modulation of the beams can control this instability, allowing such a device to act as an oscillator at chosen radiation frequencies in the millimeter and sub-millimeter ranges. Simulations of this device show amplification of 100-GHz radiation, with convenient scaling up to 1 THz. Additionally, the experiment merely requires two low-voltage, low-current electron beams and straightforward beam and millimeter-wave optics, with a total beamline length of under a meter. They predict this simple and compact device can generate up to 100 W of 1-THz radiation.
| Limitations: |
 APPROVED FOR PUBLIC RELEASE |
| Description: |
Conference paper abstract |
| Pages: |
2 |
| Report Date: |
Apr 2008 |
| Report Number: |
A647294 |
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