Modulation–Frequency Analysis of an Electrically Pumped Plasmonic Amplifier

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• 作者：Abdolber Mallah Livani ; Hassan Kaatuzian
• 关键词：Plasmonic amplifier ; Modulation frequency ; Harmonic balance ; Small signal ; Large signal
• 刊名：Plasmonics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：12
• 期：1
• 页码：27-32
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Biotechnology; Nanotechnology; Biophysics and Biological Physics; Biochemistry, general;
• 出版者：Springer US
• ISSN：1557-1963
• 卷排序：12

文摘

Frequency of variations of surface plasmon intensity at the input of a plasmonic amplifier is called modulation–frequency. High modulation–frequency behavior of a Schottky junction-based plasmonic amplifier has been in the focus of this paper. Both small signal and large signal conditions have been considered. In small signal condition, an analytical solution of the rate equations of the electrons and photons has been presented which its results are in accordance with the simulation results of a harmonic balance method. For an amplifier of 100 μm length, the small signal gain has been 14.62 dB from both methods. Large signal behavior has been described by IIP2 and IIP3 in a two tone test which has been implemented by the harmonic balance method. IIP2 and IIP3 of the plasmonic amplifier of this work at 1 GHz are –21.2 and –19.95 dBm, respectively, and their values increase with frequency.