On the thermal dependence of the generation of terahertz radiation by photomixing
On the thermal dependence of the generation of terahertz radiation by photomixing
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DOI：
10.1088/0268-1242/29/3/035006
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发表时间：
2014-03
影响因子：
1.9
通讯作者：
S. Campbell;T. Ackemann;H. Fraser;M. Missous
中科院分区：
文献类型：
--
作者：
S. Campbell;T. Ackemann;H. Fraser;M. Missous
研究了低温生长GaAs基天线中光混频产生太赫兹波的温度特性。对于用780 nm光激发，如果温度从18 °C增加到60 °C，则产生的光电流增加15%，而产生的THz功率增加28%。结果表明，太赫兹天线的操作相对于环境温度的变化是鲁棒的，因此支持鲁棒的可能性，潜在的移动的设备，而不需要仔细的温度控制的天线结构。
We study the temperature dependence of the generation of terahertz (THz) waves by photomixing in GaAs based antennas, grown at low-temperatures. For excitation with 780 nm light, the generated photocurrent increases by 15%, if the temperature is increased from 18 °C to 60 °C, whereas the generated THz power increases by 28%. The results show that the operation of THz antennas is robust with respect to changes in the ambient temperature and thus support the possibility of robust, potentially mobile devices without the need for a careful temperature control of the antenna structure.