Terahertz microchip for illicit drug detection

Ja Yu Lu, Li Jin Chen, Tzeng Fu Kao, Hsu Hao Chang, Hung Wen Chen, An Shyi Liu, Yi Chun Chen, Ruey Beei Wu, Wei Sheng Liu, Jeng Inn Chyi, Chi Kuang Sun

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


To accurately detect minute amounts of substances without disturbing the surroundings of target molecules has been a major goal in bioanalytical technology. Here by integrating an optoelectronic terahertz (THz) microsource into a glass-substrated microchip within the near-field distance, we demonstrate a compact, label-free, noninvasive, and sensitive microbiosensing system with low-power consumption. The demonstrated THz microchip allows us to locally specify various illicit drug powders with weights of nanograms, with a promising future for rapid identification of the static status or even the dynamics of various biomolecules.

Original languageEnglish
Pages (from-to)2254-2256
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number21
Publication statusPublished - 2006 Nov 1

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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