Journal
APPLIED OPTICS
Volume 53, Issue 7, Pages 1406-1412Publisher
OPTICAL SOC AMER
DOI: 10.1364/AO.53.001406
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Funding
- Research Project on Food Safety of Korea Food Research Institute and the R&D Convergence Program of MSIP (Ministry of Science, ICT and Future Planning)
- ISTK (Korea Research Council for Industrial Science and Technology) of Republic of Korea [B551179-09-05-00]
- National Research Council of Science & Technology (NST), Republic of Korea [B551179-09-05-00] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In contrast to conventional x-ray food inspection systems that have difficulty in detecting low-density materials, a terahertz imaging system can even identify insects and plastics embedded in a food matrix. A reflection-mode continuous-wave terahertz imaging system was therefore developed for application to food quality inspection, which requires fast, compact, and low-cost detection. High-speed operation of the terahertz imaging system was achieved through the use of a beam-steering tool. A reasonable compromise between the spatial resolution and the scan length of an aspheric f-theta scanning lens could be achieved by optimizing the lens parameters. (C) 2014 Optical Society of America
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