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Proceedings Paper

Birefringence analysis of cultured and imitation pearls using polarization-sensitive swept-source OCT
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Paper Abstract

We present a birefringence analysis method based on polarization-sensitive swept-source optical coherence tomography (PS-SS-OCT) for distinguishing pearls. To cope with the round shape of general pearls, a rotation stage was used for the sample scanning. With the system, the birefringence of several cultured pearls including south sea, Akoya, freshwater cultured pearls, and imitation pearls are analyzed and compared. Interestingly, PS-SS-OCT surely shows well developed birefringence patterns of phase retardation and fast axis orientation with the cultured pearls, whereas the pattern does not appear in the imitation pearls. In addition, the intensity image can help to distinguish the cultured pearls. Therefore, PSSS-OCT enables a more accurate interpretation for identifying the cultured pearls from imitation pearls.

Paper Details

Date Published: 22 February 2013
PDF: 6 pages
Proc. SPIE 8593, Optical Methods in Developmental Biology, 85930O (22 February 2013); doi: 10.1117/12.2003768
Show Author Affiliations
Jae Hwi Lee, Gwangju Institute of Science and Technology (Korea, Republic of)
Eun Jung Min, Gwangju Institute of Science and Technology (Korea, Republic of)
Jun Geun Shin, Gwangju Institute of Science and Technology (Korea, Republic of)
Kwan Seob Park, Gwangju Institute of Science and Technology (Korea, Republic of)
Hea-Yeon Kim, Gyeongsang National Univ. (Korea, Republic of)
Korea Pearl Lab. (Korea, Republic of)
Byeong Ha Lee, Gwangju Institute of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 8593:
Optical Methods in Developmental Biology
Andrew M. Rollins; Cecilia Lo; Scott E. Fraser, Editor(s)

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