1. Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul 01812, South Korea
2. Center for THz-driven Biomedical Systems, Department of Physics and Astronomy, Seoul National University, Seoul 08826, South Korea
3. Institute for Basic Science Center for Axion and Precision Physics Research, Daejeon 34141, South Korea
4. Seoul-Teracom, Inc., Gyeonggi-do, Suwon 16229, South Korea
5. The Council of Scientific and Industrial Research, Central Electronics Engineering Research Institute, Pilani 333031, India