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

doi:10.1364/OE.27.010936

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 journal › Article › peer-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 language	English
Pages (from-to)	10936-10945
Number of pages	10
Journal	Optics Express
Volume	27
Issue number	8
DOIs	https://doi.org/10.1364/OE.27.010936
Publication status	Published - 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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10.1364/OE.27.010936

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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.",

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AU - Jeong, Seungwon

AU - Kim, Dong Young

AU - Lee, Ye Ryoung

AU - Choi, Wonjun

AU - Choi, Wonshik

PY - 2019/4/15

Y1 - 2019/4/15

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AB - 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.

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

Abstract

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ASJC Scopus subject areas

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