부분 반사 프로브를 사용한 공통경로 OCT 이미지 획득
Common-path OCT Image Using Partial Reflecting Probe
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초록
기존 OCT 시스템의 Michelson 간섭계와 다르게 간섭신호가 프로브 끝단에서 유도되어 기준신호와 샘플신호가 동일한 경로를 통 해 진행하는 공통경로 OCT 시스템을 제작하였다. 최적의 기준신호가 생성되도록 하기 위해 부분반사 프로브(Probe)의 굴절률을 최적 화하였고 생체 샘플의 이미지 획득이 가능하도록 프로브의 끝단에서 초점이 맺히도록 볼록 렌즈형 프로브를 제작하였다. 이를 통해서 실제 샘플의2차원 이미지의 획득이 가능하였다.
Abstract
Unlike conventional optical coherence tomography systems based on Michelson interferometer, we suggest a common-path OCT system, which does not include a separated configuration between reference signal and sample signal. We optimize the refractive index of partial reflecting probe to induce a balanced intensity of the reference signal. At the end of the probe, convex lens was optimally fabricated to get images of biological samples in the position of focus. Using the experimental system, we could get 2-D images of various biological samples.
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