期刊
OPTICS EXPRESS
卷 18, 期 16, 页码 17521-17532出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.18.017521
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资金
- National Science Foundation Science & Technology Center for Adaptive Optics (CfAO) [AST 9876783]
- National Science Foundation Center for Biophotonics Science & Technology (CBST) [PHY 0120999]
- California Institute for Regenerative Medicine [RT1-01095-1]
- University of California [2008-19]
- NIH [GM046409]
- California Institute for Quantitative Biosciences (QB3)
- Center for Biophotonics Science and Technology
We present a new method to directly measure and correct the aberrations introduced when imaging through thick biological tissue. A Shack-Hartmann wavefront sensor is used to directly measure the wavefront error induced by a Drosophila embryo. The wavefront measurements are taken by seeding the embryo with fluorescent microspheres used as artificial guide-stars. The wavefront error is corrected in ten millisecond steps by applying the inverse to the wavefront error on a micro-electromechanical deformable mirror in the image path of the microscope. The results show that this new approach is capable of improving the Strehl ratio by 2 times on average and as high as 10 times when imaging through 100 mu m of tissue. The results also show that the isoplanatic half-width is approximately 19 mu m resulting in a corrected field of view 38 mu m in diameter around the guide-star. (C) 2010 Optical Society of America
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