Continuous-wave (CW) and pulsed sources are two types of signal generation used in terahertz imaging systems. CW sources emit a constant wave of electromagnetic radiation, providing a steady signal that is useful for certain applications, while pulsed sources generate short bursts of energy, allowing for time-domain measurements and improved resolution. Understanding the differences between these two types of sources is essential for effectively selecting the appropriate method for various terahertz imaging tasks.
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