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Shaping volumetric light distribution through turbid media using real-time three-dimensional opto-acoustic feedback.
Opt. Lett. 40, 443-446 (2015)
Focusing light through turbid media represents a highly fascinating challenge in modern biophotonics. The unique capability of opto-acoustics for high-resolution imaging of light absorption contrast in deep tissues can provide a natural and efficient feedback to control light delivery in a scattering medium. While the basic feasibility of using opto-acoustic readings as a feedback mechanism for wavefront shaping has been recently reported, the suggested approaches may require long acquisition times, making them challenging to be translated into realistic tissue environments. In an attempt to significantly accelerate dynamic wavefront shaping capabilities, we present here a feedback-based approach using real-time three-dimensional opto-acoustic imaging assisted with genetic-algorithm-based optimization. The new technique offers robust performance in the presence of noisy measurements and can simultaneously control the scattered wave field in an entire volumetric region.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Scattering Media; Tomography; Microscopy; Regime; Array
ISSN (print) / ISBN
0146-9592
e-ISSN
1539-4794
Journal
Optics Letters
Quellenangaben
Volume: 40,
Issue: 4,
Pages: 443-446
Publisher
Optical Society of America (OSA)
Publishing Place
Washington
Reviewing status
Peer reviewed
Institute(s)
Institute of Biological and Medical Imaging (IBMI)