Closed loop adaptive optics for microscopy without a wavefront sensor.
Closed loop adaptive optics for microscopy without a wavefront sensor.
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DOI:
10.1117/12.840943
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发表时间:
2010-02-24
期刊:
影响因子:
--
通讯作者:
Sedat JW
中科院分区:
文献类型:
--
作者:
Kner P;Winoto L;Agard DA;Sedat JW
A three-dimensional wide-field image of a small fluorescent bead contains more than enough information to accurately calculate the wavefront in the microscope objective back pupil plane using the phase retrieval technique. The phase-retrieved wavefront can then be used to set a deformable mirror to correct the point-spread function (PSF) of the microscope without the use of a wavefront sensor. This technique will be useful for aligning the deformable mirror in a widefield microscope with adaptive optics and could potentially be used to correct aberrations in samples where small fluorescent beads or other point sources are used as reference beacons. Another advantage is the high resolution of the retrieved wavefont as compared with current Shack-Hartmann wavefront sensors. Here we demonstrate effective correction of the PSF in 3 iterations. Starting from a severely aberrated system, we achieve a Strehl ratio of 0.78 and a greater than 10-fold increase in maximum intensity.
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影响因子:
3.4
作者:
HIRAOKA, Y;SEDAT, JW;AGARD, DA
通讯作者:
AGARD, DA
影响因子:
3.8
作者:
Debarre, Delphine;Botcherby, Edward J.;Wilson, Tony
通讯作者:
Wilson, Tony
DOI:
10.1073/pnas.082544799
发表时间:
2002-04-30
影响因子:
11.1
作者:
Booth, MJ;Neil, MAA;Wilson, T
通讯作者:
Wilson, T
影响因子:
3.8
作者:
Potsaid, B;Bellouard, Y;Wen, JT
通讯作者:
Wen, JT
影响因子:
2
作者:
Hanser, BM;Gustafsson, MGL;Sedat, JW
通讯作者:
Sedat, JW