Image sensing device and focal plane array device using frequency conversion for real-time terahertz imaging실시간 테라 헤르쯔 이미징을 위한 주파수 변환을 사용하는 이미지 감지 장치와 초점면 어레이 장치
Provided is an image sensing device that includes a detector configured to detect a terahertz wave signal received by a receiving antenna, a voltage-controlled oscillator configured to output an oscillation frequency according to an output voltage of the detector, and a frequency digital converter configured to convert the oscillation frequency output from the voltage-controlled oscillator to a digital signal.