Optoelectronic-based high-efficiency quasi-CW terahertz imaging

Ja Yu Lu, Hsu Hao Chang, Li Jin Chen, Ming Chun Tien, Chi Kuang Sun

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We demonstrate an optoelectronic-based high-efficiency terahertz (THz) imaging system. Based on a micron-sized photonic transmitter operating at room temperature, an improved signal-to-noise ratio with a reasonable spatial resolution can be achieved. Biomedical THz imaging was demonstrated with a dried seahorse and a fresh flower, which were hidden in plastic sample holders and were invisible. Tissue and water distributions of distinct regions of the bio-samples were clearly resolved, showing the high imaging contrasts of the demonstrated system. These results reveal the possibility to construct a high-sensitivity THz imaging system with less than 1-mW optical excitation.

Original languageEnglish
Pages (from-to)2406-2408
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number11
Publication statusPublished - 2005 Nov

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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