Open Access
14 August 2012 Energy enhancement in time-reversed ultrasonically encoded optical focusing using a photorefractive polymer
Author Affiliations +
Abstract
Time-reversed ultrasonically encoded (TRUE) optical focusing achieves light focusing into scattering media beyond one transport mean free path, which is desirable in biomedical optics. However, the focused optical energy needs to be increased for broad applications. Here, we report the use of a photorefractive polymer (PRP) as the phase conjugate mirror in TRUE optical focusing. The PRP boosted the focused optical energy by ∼ 40 times in comparison to the previously used photorefractive Bi12SiO20 crystal. As a result, we successfully imaged absorbing objects embedded in the middle plane of a tissue-mimicking phantom having an optical thickness of 120 scattering mean free paths.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
Yuta Suzuki, Xiao Xu, Puxiang Lai, and Lihong V. Wang "Energy enhancement in time-reversed ultrasonically encoded optical focusing using a photorefractive polymer," Journal of Biomedical Optics 17(8), 080507 (14 August 2012). https://doi.org/10.1117/1.JBO.17.8.080507
Published: 14 August 2012
Lens.org Logo
CITATIONS
Cited by 22 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Crystals

Tissue optics

Holograms

Biomedical optics

Photorefractive polymers

Scattering

Light scattering

Back to Top