A Concealed Barcode Identification System Using Terahertz Time-domain Spectroscopy

作者:Guan Yu*; Yamamoto Manabu; Kitazawa Toshiyuki; Tripathi Saroj R; Takeya Kei; Kawase Kodo
来源:Journal of Infrared Millimeter and Terahertz Waves, 2015, 36(3): 298-311.
DOI:10.1007/s10762-014-0128-2

摘要

We present a concealed terahertz barcode/chipless tag to achieve remote identification through an obstructing material using terahertz radiation. We show scanned terahertz reflection spectral images of barcodes concealed by a thick obstacle. A concealed and double- side printed terahertz barcode structure is proposed, and we demonstrate that our design has better performance in definition than a single-side printed barcode using terahertz time-domain spectroscopy. This technique combines the benefits of a chipless tag to read encoded information covered by an optically opaque material with low cost and a simple fabrication process. Simulations are also described, along with an explanation of the principle of the terahertz barcode identification system.

  • 出版日期2015-3
  • 单位RIKEN