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- Park, Jung-Hoon
- Bio-Optics Lab.
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Complex wavefront shaping for optimal depth-selective focusing in optical coherence tomography
- Author(s)
- Jang, Jaeduck, Lim, Jaeguyn, Yu, Hyeonseung, Choi, Hyun, Ha, Jinyong, Park, Jung-Hoon, Oh, Wang-Yuhl, Jang, Wooyoung, Lee, SeongDeok, Park, YongKeun
- Issued Date
- 2013-02
- Citation
- OPTICS EXPRESS, v.21, no.3, pp.2890 - 2902
- Abstract
- We report on an approach to exploit multiple light scattering by shaping the incident wavefront in optical coherence tomography (OCT). Most of the reflected signal from biological tissue consists of multiply scattered light, which is regarded as noise in OCT. A digital mirror device (DMD) is utilized to shape the incident wavefront such that the maximal energy is focused at a specific depth in a highly scattering sample using a coherence-gated reflectance signal as feedback. The proof-of-concept experiment demonstrates that this approach enhances depth-selective focusing in the presence of optical inhomogeneity, and thus extends the penetration depth in spectral domain-OCT (SD-OCT). (C) 2013 Optical Society of Americ
- Publisher
- OPTICAL SOC AMER
- ISSN
- 1094-4087
- Keyword
- SPECKLE REDUCTION, TURBID MEDIA, LIGHT, SCATTERING, MICROSCOPY, RESOLUTION, OCT
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