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In order to improve the resolution of an imaging system and make the system as simple as possible, the wavefront sensing and the image post-processing using phase diversity are combined to form a new method, i.e., phase diversity hybrid method, in this paper. The performance of this method is simulated for a point source and also for an extended source. An experimental platform is built based on a point source. The experimental results demonstrate that the acceptable results cannot be achieved by using single post-processing for large aberration. The full width half maximum of the light spot descends from 5.1 pixels, 5.1 pixels, and 5.0 pixels which are corrected by adaptive optics to 3.3 pixels, 3.2 pixels, and 3.0 pixels respectively. We can see that the quality of the image processed by phase diversity hybrid method is much better than that restored by post-processing method or corrected by adaptive optics only. It has a great potential application in the filed of high resolution imaging.
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Keywords:
- high resolution imaging /
- phase diversity /
- hybrid method
[1] Li F, Rao C H 2010 Chinese J. Lasers 37 2813 (in Chinese) [李斐, 饶长辉 2010 中国激光 37 2813]
[2] Babcock H W 1953 Publ. Astron. Soc. Pac. 65
[3] Ning Y, Yu H, Zhou H, Rao C H, Jiang W H 2009 Acta Phys. Sin. 58 4717 (in Chinese) [宁禹, 余浩, 周虹, 饶长辉, 姜文汉 2009 58 4717]
[4] Bai F Z, Rao C H 2010 Acta Phys. Sin. 59 4056 (in Chinese) [白福忠, 饶长辉 2010 59 4056]
[5] Christou J C, Hege E K, Jefferies S M, Cheselka M 1998 Proc. SPIE 3494 177
[6] Gonsalves R 1982 Opt. Engng. 21 829
[7] Paxman R G, Schulz T J, Fienup J R 1992 J. Opt. Soc. Am. A 9 1072
[8] Li Q 2007 Ph. D. Dissertation (Institute of Optics and Electronics, Chinese Academy of Sciences) (in Chinese) [李强 2007 博士学位论文 (中国科学院光电技术研究所)]
[9] Bucci O M, Capozzoli A, D’Elia G 1999 J. Opt. Soc. Am. A 16 1759
[10] Gilles L, Vogel C R, Bardsley J 2002 Inverse Problems 18 237
[11] Nocedal J 1980 Mathematics of Computation 35 773
[12] Jin Z Y, Liu Z, Qiu Y H 2009 Acta Optica Sinica 29 1205 (in Chinese) [金振宇, 刘忠, 邱耀辉 2009 光学学报 29 1205]
[13] Noll R J 1976 J. Opt. Soc. Am. A 66 207
[14] Roddier N 1990 Optical Engng 29 1174
[15] Li F 2011 Ph. D. Dissertation (National University of Defense Technology) 84 (in Chinese) [李斐 2011 博士学位论文 (国防科学技术大学) 84]
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[1] Li F, Rao C H 2010 Chinese J. Lasers 37 2813 (in Chinese) [李斐, 饶长辉 2010 中国激光 37 2813]
[2] Babcock H W 1953 Publ. Astron. Soc. Pac. 65
[3] Ning Y, Yu H, Zhou H, Rao C H, Jiang W H 2009 Acta Phys. Sin. 58 4717 (in Chinese) [宁禹, 余浩, 周虹, 饶长辉, 姜文汉 2009 58 4717]
[4] Bai F Z, Rao C H 2010 Acta Phys. Sin. 59 4056 (in Chinese) [白福忠, 饶长辉 2010 59 4056]
[5] Christou J C, Hege E K, Jefferies S M, Cheselka M 1998 Proc. SPIE 3494 177
[6] Gonsalves R 1982 Opt. Engng. 21 829
[7] Paxman R G, Schulz T J, Fienup J R 1992 J. Opt. Soc. Am. A 9 1072
[8] Li Q 2007 Ph. D. Dissertation (Institute of Optics and Electronics, Chinese Academy of Sciences) (in Chinese) [李强 2007 博士学位论文 (中国科学院光电技术研究所)]
[9] Bucci O M, Capozzoli A, D’Elia G 1999 J. Opt. Soc. Am. A 16 1759
[10] Gilles L, Vogel C R, Bardsley J 2002 Inverse Problems 18 237
[11] Nocedal J 1980 Mathematics of Computation 35 773
[12] Jin Z Y, Liu Z, Qiu Y H 2009 Acta Optica Sinica 29 1205 (in Chinese) [金振宇, 刘忠, 邱耀辉 2009 光学学报 29 1205]
[13] Noll R J 1976 J. Opt. Soc. Am. A 66 207
[14] Roddier N 1990 Optical Engng 29 1174
[15] Li F 2011 Ph. D. Dissertation (National University of Defense Technology) 84 (in Chinese) [李斐 2011 博士学位论文 (国防科学技术大学) 84]
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