Real-Time Analysis of THz Quantum-Cascade Laser Signals using a Field Effect Transistor Array

Real-Time Analysis of THz Quantum-Cascade Laser Signals using a Field Effect Transistor Array
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使用场效应晶体管阵列实时分析太赫兹量子级联激光信号

DOI:
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发表时间:
2023
期刊:
International Conference on Infrared, Millimeter, and Terahertz Waves
影响因子:
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通讯作者:
A. Valavanis
A. Valavanis
中科院分区:
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文献类型:
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作者:
N. North;J. Holstein;M. Horbury;H. Godden;L. Li;J. R. Freeman;E. Linfield;H. Roskos;A. Lisauskas;A. Valavanis

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我们演示了实时分析的发射从3.4太赫兹量子级联激光(QCL)源,使用纳米级场效应晶体管器件的阵列。我们表明,太赫兹功率可以直接检测到高达500 kHz的调制带宽,并间接通过在设备阈值的变化,高达100 MHz的带宽。
We demonstrate real-time analysis of the emission from a 3.4-THz quantum-cascade laser (QCL) source, using an array of nanoscale field-effect transistor devices. We show that THz power can be detected directly up to a modulation bandwidth of 500 kHz, and indirectly via a change in the device threshold, up to a 100-MHz bandwidth.