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 journalArticle

2 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

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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