Terahertz Reflection-Mode Biological Imaging Based on InP HBT Source and Detector

Jongwon Yun, Seung Jae Oh, Kiryong Song, Daekeun Yoon, Hye Young Son, Yuna Choi, Yong Min Huh, Jae Sung Rieh

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


This paper presents the development of an oscillator and a detector based on InP HBT technology operating near 300 GHz, and their application to terahertz reflection-mode imaging. The fabricated fundamental-mode common-base (CB) cross-coupled oscillator exhibits a peak output power of 5.3 dBm at 305.8 GHz, and the CB direct detector shows a responsivity higher than 40 kV/W and noise equivalent power lower than 35 pW/√Hz for a frequency range of 270-345 GHz. The imaging system employing the fabricated circuits as the signal source and detector was characterized for the resolution and dynamic range, and then, successfully applied for imaging various biological samples. The results show that low-power terahertz reflection-mode imaging based on solid-state electronic sources and detectors based on a commercial semiconductor technology is promising for various biomedical imaging applications.

Original languageEnglish
Article number7891606
Pages (from-to)274-283
Number of pages10
JournalIEEE Transactions on Terahertz Science and Technology
Issue number3
Publication statusPublished - 2017 May

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

All Science Journal Classification (ASJC) codes

  • Radiation
  • Electrical and Electronic Engineering


Dive into the research topics of 'Terahertz Reflection-Mode Biological Imaging Based on InP HBT Source and Detector'. Together they form a unique fingerprint.

Cite this