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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 4 — May. 4, 2011

Multimodal analysis of pearls and pearl treatments by using optical coherence tomography and fluorescence spectroscopy

Myeong Jin Ju, Sang Jin Lee, Yuri Kim, Jun Geun Shin, Hae Yeon Kim, Yiheng Lim, Yoshiaki Yasuno, and Byeong Ha Lee  »View Author Affiliations

Optics Express, Vol. 19, Issue 7, pp. 6420-6432 (2011)

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We present an integrated optical system that consists of optical coherence tomography (OCT) and laser-induced fluorescence (LIF) spectroscopy for multimodal analysis of pearls and pearl treatments. The OCT source and the LIF excitation beams were aligned together to illuminate the same spot of a pearl fixed on the sample stage that was under rotation. As a result, both OCT images and LIF spectra of the pearls were detected at the same time and also at the same place. For OCT, a 1310 nm-centered swept laser source was used. For LIF, a 405 nm laser diode was used and a lensed multimode fiber was utilized as a fluorescence probe. The tomographic investigation on the internal structure of a pearl allowed us to evaluate and categorize the pearl nondestructively as was previously reported. In addition, the measurements of fluorescence spectrum and its decaying rate helped to determine the species of mother oyster. The proposed multimodal analysis made it possible to classify the pearls and also to disclose the treatments made on the pearls.

© 2011 OSA

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.4500) Imaging systems : Optical coherence tomography
(110.6880) Imaging systems : Three-dimensional image acquisition
(160.4890) Materials : Organic materials
(170.6280) Medical optics and biotechnology : Spectroscopy, fluorescence and luminescence

ToC Category:
Imaging Systems

Original Manuscript: January 24, 2011
Revised Manuscript: March 5, 2011
Manuscript Accepted: March 14, 2011
Published: March 21, 2011

Virtual Issues
Vol. 6, Iss. 4 Virtual Journal for Biomedical Optics

Myeong Jin Ju, Sang Jin Lee, Yuri Kim, Jun Geun Shin, Hae Yeon Kim, Yiheng Lim, Yoshiaki Yasuno, and Byeong Ha Lee, "Multimodal analysis of pearls and pearl treatments by using optical coherence tomography and fluorescence spectroscopy," Opt. Express 19, 6420-6432 (2011)

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