Iterative optimization of time-gated reflectance for the efficient light energy delivery within scattering media

Seungwon Jeong, Dong Young Kim, Ye Ryoung Lee, Wonjun Choi, Wonshik Choi

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    In complex media, light waves are diffused both in space and time due to multiple light scattering, and its intensity is attenuated with the increase of propagation depth. In this paper, we propose an iterative wavefront shaping method for enhancing time-gated reflection intensity, which leads to efficient light energy delivery to a target object embedded in a highly scattering medium. We achieved an over 10 times enhancement of reflectance at the specific flight time and demonstrated the focusing of light energy to the target object. Since the proposed method does not require reflection matrix measurement, it will be highly suited to samples in mechanically dynamic conditions.

    Original languageEnglish
    Pages (from-to)10936-10945
    Number of pages10
    JournalOptics Express
    Volume27
    Issue number8
    DOIs
    Publication statusPublished - 2019 Apr 15

    Bibliographical note

    Publisher Copyright:
    © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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