Terahertz technology refers to the use of electromagnetic waves in the terahertz frequency range, which lies between microwave and infrared radiation. These waves can penetrate various materials, making them useful for applications such as imaging, sensing, and communication. This technology has potential in fields like medical diagnostics, where it can help detect diseases by analyzing tissue properties, and in security screening, where it can identify concealed objects without harmful radiation. As research advances, terahertz technology may lead to new innovations in both industry and everyday life.