Terahertz Versus Submillimeter Waves
The terahertz band, covering the wavelength range between 0.1 and 1 mm, is identical to the submillimeter wavelength band. However, typically, the term "terahertz" is used more often in marketing in relation to generation and detection with pulsed lasers, as in terahertz time domain spectroscopy, while the term "submillimeter" is used for generation and detection with microwave technology, such as harmonic multiplication.
Read more about this topic: Terahertz Radiation
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“In the Yangtze River waves push the waves ahead; so in life new people constantly replace the old ones.”
—Chinese proverb.