Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices

We propose a terahertz frequency multiplier based on high order harmonic generation in a GaAs-based miniband superlattice driven by an electric field. The performance of the frequency multiplier is analyzed using the balance equation approach, which incorporates momentum and energy relaxation proces...

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Main Authors: Wei Feng, Shuting Wei, Yonghui Zheng, Chang Wang, Juncheng Cao
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/12/7/1114
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author Wei Feng
Shuting Wei
Yonghui Zheng
Chang Wang
Juncheng Cao
author_facet Wei Feng
Shuting Wei
Yonghui Zheng
Chang Wang
Juncheng Cao
author_sort Wei Feng
collection DOAJ
description We propose a terahertz frequency multiplier based on high order harmonic generation in a GaAs-based miniband superlattice driven by an electric field. The performance of the frequency multiplier is analyzed using the balance equation approach, which incorporates momentum and energy relaxation processes at different lattice temperatures. It is found that the generated high-order harmonic power is sensitive to temperature changes. The peak power appears around resonance between driving terahertz frequency and intrinsic Bloch frequency. In the presence of the magnetic field, the peak power shifts towards a stronger static electric field region. The simulated results about the dependence of the second and third harmonic powers on a DC electric field are in qualitative consistence with the experiments. The proposed terahertz frequency multiplier based on semiconductor superlattice, being compact and efficient, is provided as a good candidate for terahertz wave generation.
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spelling doaj.art-fef02a5e4fc7492ab887e569bd8fe5812023-11-30T23:44:38ZengMDPI AGNanomaterials2079-49912022-03-01127111410.3390/nano12071114Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor SuperlatticesWei Feng0Shuting Wei1Yonghui Zheng2Chang Wang3Juncheng Cao4School of Physics and Electronic Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, ChinaSchool of Physics and Electronic Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaWe propose a terahertz frequency multiplier based on high order harmonic generation in a GaAs-based miniband superlattice driven by an electric field. The performance of the frequency multiplier is analyzed using the balance equation approach, which incorporates momentum and energy relaxation processes at different lattice temperatures. It is found that the generated high-order harmonic power is sensitive to temperature changes. The peak power appears around resonance between driving terahertz frequency and intrinsic Bloch frequency. In the presence of the magnetic field, the peak power shifts towards a stronger static electric field region. The simulated results about the dependence of the second and third harmonic powers on a DC electric field are in qualitative consistence with the experiments. The proposed terahertz frequency multiplier based on semiconductor superlattice, being compact and efficient, is provided as a good candidate for terahertz wave generation.https://www.mdpi.com/2079-4991/12/7/1114terahertzmultipliersuperlatticemagnetic fieldbalance equation approach
spellingShingle Wei Feng
Shuting Wei
Yonghui Zheng
Chang Wang
Juncheng Cao
Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
Nanomaterials
terahertz
multiplier
superlattice
magnetic field
balance equation approach
title Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
title_full Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
title_fullStr Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
title_full_unstemmed Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
title_short Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices
title_sort theoretical analysis of terahertz frequency multiplier based on semiconductor superlattices
topic terahertz
multiplier
superlattice
magnetic field
balance equation approach
url https://www.mdpi.com/2079-4991/12/7/1114
work_keys_str_mv AT weifeng theoreticalanalysisofterahertzfrequencymultiplierbasedonsemiconductorsuperlattices
AT shutingwei theoreticalanalysisofterahertzfrequencymultiplierbasedonsemiconductorsuperlattices
AT yonghuizheng theoreticalanalysisofterahertzfrequencymultiplierbasedonsemiconductorsuperlattices
AT changwang theoreticalanalysisofterahertzfrequencymultiplierbasedonsemiconductorsuperlattices
AT junchengcao theoreticalanalysisofterahertzfrequencymultiplierbasedonsemiconductorsuperlattices