High-sensitivity ultrasound-modulated optical tomography with a photorefractive polymer

Yuta Suzuki, Puxiang Lai, Xiao Xu, Lihong Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

By detecting ultrasonically tagged diffuse light, ultrasound-modulated optical tomography images optical contrast with ultrasonic resolution deep in turbid media, such as biological tissue. However, small detection etendues and weak tagged light submerged in strong untagged background light limit the signal detection sensitivity. In this Letter, we report the use of a large-area (∼5 cm × 5cm) photorefractive polymer film that yields more than 10 times detection etendue over previous detection schemes. Our polymer-based system enabled us to resolve absorbing objects embedded inside diffused media thicker than 80 transport mean free paths, by using moderate light power and short ultrasound pulses.
Original languageEnglish
Pages (from-to)899-901
Number of pages3
JournalOptics Letters
Volume38
Issue number6
DOIs
Publication statusPublished - 15 Mar 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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