Efficiency of the terahertz spin-injection emitter

The energy efficiency of the spin-injection emitter based on the rod-film ferromagnetic structure with a point contact between the components in the terahertz frequency range is experimentally estimated. The film material substantially affects the efficiency. A concentrator of magnetic flux is propo...

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Veröffentlicht in:	Journal of communications technology & electronics 2011-11, Vol.56 (11), p.1363-1366
Hauptverfasser:	Gulyaev, Yu. V., Chigarev, S. G., Malikov, I. V., Mikhailov, G. M., Zil’berman, P. E., Epshtein, E. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analysis Communications Engineering Communications equipment Communications technology Concentrators Electromagnetism Electronics Emitters (electron) Energy efficiency Engineering Ferroelectrics Ferromagnetism Lasers Magnetic flux Networks Nuclear radiation Point contact Power supply Radiation Radio communications Radio Phenomena in Solids and Plasma Studies Terahertz frequencies Unity
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Zusammenfassung:	The energy efficiency of the spin-injection emitter based on the rod-film ferromagnetic structure with a point contact between the components in the terahertz frequency range is experimentally estimated. The film material substantially affects the efficiency. A concentrator of magnetic flux is proposed for an increase in the efficiency. The experimental estimations allow the quantum yield of the emitter that is greater than unity. This result indicates significant contribution of the stimulated radiative transitions.
ISSN:	1064-2269 1555-6557
DOI:	10.1134/S106422691110010X