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High-throughput volumetric adaptive optical imaging using compressed time-reversal matrix

Light(Science & Applications) 2022年第1期11卷 114-126页

作者： Hojun Lee seokchan yoon Pascal Loohuis Jin Hee Hong Sungsam Kang Wonshik Choi Center for Molecular Spectroscopy and Dynamics Institute for Basic ScienceSeoul 02841Korea Department of Physics Korea UniversitySeoul 02841Korea Department of Applied Mathematics University of TwenteDrienerlolaan 57522 NB EnschedeNetherlands Achmea Holding BV Handelsweg 23707 NH ZeistNetherlands

Deep-tissue optical imaging suffers from the reduction of resolving power due to tissue-induced optical aberrations and multiple scattering *** matrix approaches recording the maps of backscattered waves for all the possible orthogonal input channels have provided formidable solutions for removing severe aberrations and recovering the ideal diffraction-limited spatial resolution without relying on fluorescence labeling and guide ***,measuring the full input–output response of the tissue specimen is time-consuming,making the real-time image acquisition ***,we present the use of a time-reversal matrix,instead of the reflection matrix,for fast high-resolution volumetric imaging of a mouse *** time-reversal matrix reduces two-way problem to one-way problem,which effectively relieves the requirement for the coverage of input *** a newly developed aberration correction algorithm designed for the time-reversal matrix,we demonstrated the correction of complex aberrations using as small as 2%of the complete basis while maintaining the image reconstruction fidelity comparable to the fully sampled reflection *** to nearly 100-fold reduction in the matrix recording time,we could achieve real-time aberration-correction imaging for a field of view of 40×40µm^(2)(176×176 pixels)at a frame rate of 80 ***,we demonstrated high-throughput volumetric adaptive optical imaging of a mouse brain by recording a volume of 128×128×125µm^(3)(568×568×125 voxels)in 3.58 s,correcting tissue aberrations at each and every 1µm depth section,and visualizing myelinated axons with a lateral resolution of 0.45µm and an axial resolution of 2µm.

关键词： matrix correction recording

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