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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 23 — Nov. 5, 2012
  • pp: 25432–25440

High-speed terahertz reflection three-dimensional imaging for nondestructive evaluation

Kyong Hwan Jin, Young-Gil Kim, Seung Hyun Cho, Jong Chul Ye, and Dae-Su Yee  »View Author Affiliations

Optics Express, Vol. 20, Issue 23, pp. 25432-25440 (2012)

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We demonstrate high-speed terahertz (THz) reflection three-dimensional (3D) imaging based on electronically controlled optical sampling (ECOPS). ECOPS enables scanning of an axial range of 9 mm in free space at 1 kHz. It takes 80 s to scan a transverse range of 100 mm × 100 mm along a zigzag trajectory that consists of 200 lines using translation stages. To show applicability of the imaging system to nondestructive evaluation, a THz reflection 3D image of an artificially made sample is obtained, which is made of glass fiber reinforced polymer composite material and has defects such as delamination and inclusion, and is compared with an ultrasonic reflection 3D image of the sample.

© 2012 OSA

OCIS Codes
(110.6960) Imaging systems : Tomography
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Imaging Systems

Original Manuscript: July 5, 2012
Revised Manuscript: September 20, 2012
Manuscript Accepted: October 15, 2012
Published: October 25, 2012

Kyong Hwan Jin, Young-Gil Kim, Seung Hyun Cho, Jong Chul Ye, and Dae-Su Yee, "High-speed terahertz reflection three-dimensional imaging for nondestructive evaluation," Opt. Express 20, 25432-25440 (2012)

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