TL;DR
This paper explores the analogy between electron motion in superlattices and free electron lasers, calculating photon emission intensity and gain, showing potential for significant amplification in the IR region.
Contribution
It introduces a theoretical framework linking superlattice electron dynamics to FEL operation, with quantitative predictions of IR photon emission and gain.
Findings
Photon emission intensity can reach significant levels.
Amplification in superlattice-based FELs can reach tens of percent.
The superlattice FEL analogy provides a new approach for IR light sources.
Abstract
The motion and photon emission of electrons in a superlattice may be described as in an undulator. Therefore, there is a close analogy between ballistic electrons in a superlattice and electrons in a free electron laser (FEL). Touching upon this analogy the intensity of photon emission in the IR region and the gain are calculated. It is shown that the amplification can be significant, reaching tens of percent.
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Taxonomy
TopicsSurface and Thin Film Phenomena · Photonic and Optical Devices · Advanced Surface Polishing Techniques