简要介绍了太赫兹波的产生、探测方法和主要特点。
Terahertz (THz) wave and its unique properties were briefly introduced.
理论上，作为太赫兹波产生的逆过程，有可能实现用空气作为介质探测脉冲太赫兹波。
As its reciprocal process, in theory, it should be possible to use air as the sensor to detect pulsed THz waves.
利用超短激光脉冲触发光电导天线产生太赫兹波是目前研究比较深入，同时得到广泛采用的一种太赫兹波源。
Photoconductor antennas irradiated by ultrashort laser pulses can emit electromagnetic waves at the terahertz (THz) bandgap, which has been studied extensively and used widely as a terahertz source.
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