논문 해외 국제전문학술지(SCI급) High speed parallel spectral-domain OCT using spectrally encoded line-field illumination
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2018-01
- 저자명 김건희
- 학술지명 Applied Physics Letters
- 발행처명 American Institute of Physics Inc.subs@aip.org
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 8
홈페이지논문 초록 (Abstract)
We report parallel spectral-domain optical coherence tomography (OCT) at 500 000 A-scan/s. This is the highest-speed spectral-domain (SD) OCT system using a single line camera. Spectrally encoded line-field scanning is proposed to increase the imaging speed in SD-OCT effectively, and the tradeoff between speed, depth range, and sensitivity is demonstrated. We show that three imaging modes of 125k, 250k, and 500k A-scan/s can be simply switched according to the sample to be imaged considering the depth range and sensitivity. To demonstrate the biological imaging performance of the high-speed imaging modes of the spectrally encoded line-field OCT system, human skin and a whole leaf were imaged at the speed of 250k and 500k A-scan/s, respectively. In addition, there is no sensitivity dependence in the B-scan direction, which is implicit in line-field parallel OCT using line focusing of a Gaussian beam with a cylindrical lens.