大学物理 ›› 2014, Vol. 33 ›› Issue (2): 55-55.

• 著者文摘 • 上一篇    下一篇

宽场光学相干断层成像系统的二维图像重建及其教学探讨

冯升同[1] 冯音琦[2] 张鹏[1] 张敏[2]   

  1. [1]北京石油化工学院工程师学院,北京102617 [2]北京石油化工学院光机电重点实验室,北京102617
  • 出版日期:2014-02-25 发布日期:2014-02-20

Two-dimensional image reconstruction based on wide-field optical coherence tomography and its teaching investigation

  • Online:2014-02-25 Published:2014-02-20

摘要: 阐述了宽场光学相干层析成像(WFOCT)的基本原理,研究了系统成像分辨率与光源相干长度的关系.以迈克耳孙干涉仪为基础,根据等厚干涉原理,实现了WFOCT光路的快速而可靠地调节,为后续实验打下良好的基础.最后利用八步移相法重建出了较好的二维图像.此外,将宽场光学相干层析成像实验引入大学物理实验课堂,能够提高学生对迈克耳孙干涉仪的认识,培养学生初步的科学研究能力.

关键词: 宽场光学相干层析成像, 迈克耳孙干涉仪, 等厚干涉

Abstract: The principle of wide-field optical coherence tomography is described,and the relationship between imaging resolution and coherence length is studied. The system optical path can be adjusted fast and reliably according to Michelson interferometer and equal-thickness principle. Thue the follow-on experiments can be implemented. Finally a two-dimensional image is reconstructed by using step-8 phase-shifting method. In addition, WFOCT is introduced into college physics experiment,and it helps to understand the Michelson interferometer and improve the preliminary scientific research ability of students.

Key words: wide-field optical coherence tomography, Michelson interferometer, equal-thickness interference

中图分类号: 

  • O439