테라헤르츠(㎔) 대역은 중적외선(mid-IR)과 밀리미터파(millimeter wave) 사이의 중간 주파수 영역으로서, 다른 전자기파 대역에 비하여 개발 및 활용이 극히 미흡하지만 기존의 전자기파로는 얻어낼 수 없는 탁월한 기능, 즉 통신에 필요한 초고속 광대역, 신기능 센싱 및 새로운 영상정보 등을 제공한다. 이러한 ㎔ 기술이 발전함에 따라 초고속 근거리 무선통신과 함께 센싱 및 영상기술은 생화학 및 의료공학적인 검사와 측정 등 여러 분야에 걸쳐 대단한 영향을 미치고 있다. 그러나 현재의 ㎔ 시스템 기기는 규모가 큰 편이어서 실험실 등의 실내 용도로 한정된 상태이다. 이동이 가능한(mobile) 소형화한 ㎔ 시스템은 그 활용범위를 크게 넓힐 수 있으며 새로운 시장을 창출할 수 있다.
KSP Keywords
Mid-IR, millimeter wave(mmWave)
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