Towards realisation of an efficient continuous wave terahertz source using quantum dot devices

Towards realisation of an efficient continuous wave terahertz source using quantum dot devices
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使用量子点器件实现高效连续波太赫兹源

DOI:
10.1117/12.2530730
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发表时间:
2019
期刊:
--
影响因子:
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通讯作者:
Bello N
Bello N
中科院分区:
--
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作者:
Bello N

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在宽频率范围(1- 5 THz)内发射的连续波(CW)太赫兹源有望实现紧凑、高功率、可微调的室温太赫兹发生系统,这对于实现太赫兹应用具有重大意义光谱学、通信、传感和成像等。在量子点光电导天线(PCA)中实现了一种可调谐连续波量子点外腔激光器,在两个频率下发射连续波太赫兹辐射。外腔QD激光器的特征在于具有152 nm的可调谐性和1143 nm-1295.8nm的调谐范围,该调谐范围位于用于从基于QD的PCA产生THz辐射的THz差频内。
A continuous wave (CW) terahertz source emitting in a broad frequency range (1-5THz) is promising towards achieving a compact, high power, finely tunable, room temperature terahertz generation system which will be of immense significance towards the realisation of terahertz applications in spectroscopy, communication, sensing, and imaging among others. We have demonstrated a tunable continuous-wave Quantum Dot external cavity laser emitting at two frequencies for continuous wave terahertz emission in a Quantum dot Photoconductive Antenna (PCA). The external cavity QD Laser has been characterised with tunability of 152nm and a tuning range from 1143nm -1295.8nm that lies within the THz difference frequency for the generation of THz radiation from QD based PCAs.
由可调谐量子点激光二极管泵浦的基于量子点的太赫兹天线的太赫兹发射
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