Electromagnetic instability of surface waves in semiconductor superlattices.
It is shown that in semiconductor superlattices surface electromagnetic waves traveling in the direction parallel to the external static electric field may become unstable. This instability manifests itself in the emission of electromagnetic waves. The instability criteria are derived, and the frequency as well as the growth increment and the direction of the emitted waves are determined.
Tarkhanyan
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IMEL/NCSR Demokritos, B.O. Box 60 228, 153 10 Aghia Paraskevi, Athens, Greece.
Nassiopoulou
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AG
D002124:Calcium Fluoride / Q000737:chemistry; D003198:Computer Simulation; D017097:Electric Impedance; D004563:Electrochemistry / Q000379:methods*; D004574:Electromagnetic Fields; D008956:Models, Chemical; D036103:Nanotechnology / Q000295:instrumentation / Q000379:methods*; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry
D002124:Calcium Fluoride; D012825:Silicon