Measurement of the time-resolved reflection matrix for enhancing light energy delivery into a scattering medium

Youngwoon Choi, Timothy R. Hillman, Wonjun Choi, Niyom Lue, Ramachandra R. Dasari, Peter T C So, Wonshik Choi, Zahid Yaqoob

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Multiple scatterings occurring in a turbid medium attenuate the intensity of propagating waves. Here, we propose a method to efficiently deliver light energy to the desired target depth in a scattering medium. We measure the time-resolved reflection matrix of a scattering medium using coherent time-gated detection. From this matrix, we derive and experimentally implement an incident wave pattern that optimizes the detected signal corresponding to a specific arrival time. This leads to enhanced light delivery at the target depth. The proposed method will lay a foundation for efficient phototherapy and deep-tissue in vivo imaging in the near future.

Original languageEnglish
Article number243901
JournalPhysical Review Letters
Volume111
Issue number24
DOIs
Publication statusPublished - 2013 Dec 9

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Measurement of the time-resolved reflection matrix for enhancing light energy delivery into a scattering medium. / Choi, Youngwoon; Hillman, Timothy R.; Choi, Wonjun; Lue, Niyom; Dasari, Ramachandra R.; So, Peter T C; Choi, Wonshik; Yaqoob, Zahid.

In: Physical Review Letters, Vol. 111, No. 24, 243901, 09.12.2013.

Research output: Contribution to journalArticle

Choi, Youngwoon ; Hillman, Timothy R. ; Choi, Wonjun ; Lue, Niyom ; Dasari, Ramachandra R. ; So, Peter T C ; Choi, Wonshik ; Yaqoob, Zahid. / Measurement of the time-resolved reflection matrix for enhancing light energy delivery into a scattering medium. In: Physical Review Letters. 2013 ; Vol. 111, No. 24.
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