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H. L. Hartnagel *
Institut für Mikrowellentechnik und Photonik, Technische Universität Darmstadt, Darmstadt, Germany
* Email: hartnagel@mew.tu-darmstadt.de
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Abstract: A number of THz signal-processing components are proposed. Firstly, a ballistic resonator is simulated for a graphene semiconductor structure. Graphene semiconductors have the advantage of exhibiting energy gaps depending on the width of the graphene sheet. Therefore loss free reflection of ballistic electrons as established by heterojunction epitaxy, can be realized by shaping the graphene widths. The design of corresponding THz oscillators is presented. Then quantum cascaded THz emitters are described. Finally, a number of basic components such as Schottky diodes on graphene transistors are discussed.
Keywords: THz wave, Ballistic electrons, Electron reflection, Semiconductor heterostructures, Quantum cascades in graphene, THz rectification by graphene FETs
Received: 2014-10-01
Published: 2015-3-31
Acknowledgments: Gratitude is expressed to my colleagues Prof. Sascha Preu, Shihab Al-Daffaie and Prof. Duu Sheng Ong for valuable interactions.
Cite this article:
H. L. Hartnagel. Development of high power gyrotron and related technologies[J]. International Journal of Terahertz Science and Technology, 2015, Vol.8, No.1: 19-24. DOI:10.11906/TST.019-024.2015.03.02
URL: http://www.tstnetwork.org/10.11906/TST.019-024.2015.03.02
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