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Terahertz camera lens
Terahertz camera lens
Terahertz (THz) wave refers to the electromagnetic wave whose frequency is in the range of 0.1 ~ 10 THz (wavelength is 3000 ~ 30 μ m). It coincides with millimeter wave in long band and infrared light in short band. It is the transition region from macroscopic classical theory to microscopic quantum theory, and also from electronics to photonics. It is called "THz gap" of electromagnetic spectrum. Terahertz lens is widely used in terahertz imaging.
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