Abstract
Recently, novel imaging techniques based on the “memory-effect” speckle-correlations have enabled diffraction-limited imaging through scattering layers and around corners. These techniques, however, are currently limited to imaging only small planar objects contained within the angular and axial range of the memory effect. In addition, they do not provide depth information or depth-sectioning capability. Here, we extend speckle-correlation imaging to include high-resolution depth-sectioning capability in the reflection mode, by combining it with coherence gating via low-coherence holography. We demonstrate depth measurements of reflective targets through a scattering layer, and speckle-correlation imaging using coherence-gated scattered light.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Galya Stern and Ori Katz
Opt. Lett. 44(1) 143-146 (2019)
Long Li, Quan Li, Shuai Sun, Hui-Zu Lin, Wei-Tao Liu, and Ping-Xing Chen
Opt. Lett. 43(8) 1670-1673 (2018)
Xin Jin, Zhouping Wang, Xiaoyu Wang, and Qionghai Dai
Opt. Lett. 43(20) 4871-4874 (2018)