Resonant features of the terahertz generation in semiconductor nanowires

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• 作者：V. N. Trukhin ; A. D. Bouravleuv ; I. A. Mustafin ; G. E. Cirlin…
• 刊名：Semiconductors
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：50
• 期：12
• 页码：1561-1565
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Magnetism, Magnetic Materials; Physics, general;
• 出版者：Pleiades Publishing
• ISSN：1090-6479
• 卷排序：50

文摘

The paper presents the results of experimental studies of the generation of terahertz radiation in periodic arrays of GaAs nanowires via excitation by ultrashort optical pulses. It is found that the generation of THz radiation exhibits resonant behavior due to the resonant excitation of cylindrical modes in the nanowires. At the optimal geometric parameters of the nanowire array, the generation efficiency is found to be higher than that for bulk p-InAs, which is one of the most effective coherent terahertz emitters.