Optical imaging with the use of a scattering lens

Youngwoon Choi, Changhyeong Yoon, Moonseok Kim, Wonjun Choi, Wonshik Choi

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

'Turbidity' caused by multiple light scattering distorts the propagation of waves, and thus undermines optical imaging. For example, translucent biological tissues exhibiting optical turbidity have posed limitations on the imaging depth and energy transmission. Here, we introduce a novel method called turbid lens imaging (TLI) that records a transmission matrix of a scattering medium charactering the input-output response of the medium. The knowledge of this transmission matrix allows one to find an incident wave out of the distorted transmitted wave. Therefore, it converts the highly complex medium into a useful imaging optics. We demonstrate that the image distortion by a scattering medium can be eliminated by the use of the transmission matrix and a clean object image can be retrieved as a result. We extend TLI for imaging through a multimode optical fiber, which is also a scattering medium, and demonstrate an endoscopic imaging by using a single multimode optical fiber itself as a lens. In addition, we show that TLI removes the pixelation artifact in using an image fiber bundle and improve spatial resolution. Our method of making use of multiple light scattering will lay a foundation for advance optical bioimaging methods.

Original languageEnglish
Article number6582553
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume20
Issue number2
DOIs
Publication statusPublished - 2014

Keywords

  • Multiple scattering
  • digital holography
  • fiber optic instrumentation
  • inteferometric imaging
  • single-fiber endoscopy
  • turbid medium

ASJC Scopus subject areas

  • Ceramics and Composites
  • Atomic and Molecular Physics, and Optics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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