Incoherent Holographic Optical Phase Conjugation for Imaging Through a Scattering Medium

Abstract

In this article, we present a novel framework based on incoherent holography (IH) and optical phase conjugation (OPC) principle for imaging through scattering media. While many different methods have recently addressed the issue of focusing light inside scattering media or through-scatterer imaging, the majority of them suffer from severe drawbacks, such as demanding for a high-intensity and narrow-bandwidth laser illumination and an extremely stable optical setup in digital holography as the normal disadvantages of interferometry. On the contrary, our proposed framework relaxes the need for interferometry by getting advantage of its IH-based structure. Our newly presented approach for through-scatterer imaging consists of two principal steps, i.e., calibration phase and imaging phase. In the calibration phase, sufficient information of the scattering medium is extracted, and in the imaging phase, an arbitrary 2- D object behind this scattering medium can be clearly imaged. We have evaluated the validity and effectiveness of our proposed structure through different experimental analyses.