THz operation of asymmetric-nanochannel devices
THz operation of asymmetric-nanochannel devices
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DOI：
10.1088/0953-8984/20/38/384203
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
Claudio Balocco;M. Halsall;Nguyen Q. Vinh;Aimin Song
中科院分区：
文献类型：
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作者：
Claudio Balocco;M. Halsall;Nguyen Q. Vinh;Aimin Song
太赫兹频谱位于微波和中红外之间，这一区域在很大程度上仍未得到探索，主要是因为缺乏紧凑的固态发射器和探测器的瓶颈问题。在这里，我们报道了一种新型的不对称纳米通道器件，称为自开关器件，它可以在高达2.5THz的频率下工作，温度高达150K。据我们所知，这不仅是最简单的二极管，也是迄今报道的最快作用的电子纳米器件。辐射是由自由电子激光器Felix(荷兰)产生的。报道了器件效率随偏压、辐射强度、辐射频率和温度的变化关系。
The THz spectrum lies between microwaves and the mid-infrared, a region that remains largely unexplored mainly due to the bottleneck issue of lacking compact, solid state, emitters and detectors. Here, we report on a novel asymmetric-nanochannel device, known as the self-switching device, which can operate at frequencies up to 2.5 THz for temperature up to 150 K. This is, to our knowledge, not only the simplest diode but also the quickest acting electronic nanodevice reported to date. The radiation was generated by the free electron laser FELIX (Netherlands). The dependences of the device efficiency as a function of the electric bias, radiation intensity, radiation frequency and temperature are reported.