Three-dimensional superresolution by three-zone complex pupil filters
JOSA A, Vol. 22, Issue 2, pp. 272-277 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000272
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Abstract
Complex pupil filters are introduced to improve the three-dimensional resolving power of an optical imaging system. Through the design of the essential parameters of such filters, the transmittance and radius of the first zone, three-dimensional superresolution is realized. The Strehl ratio and the transverse and axial gains of such filters are analyzed in detail. A series of simulation examples of such filters are also presented that prove that three-dimensional superresolution can be realized. The advantage of such filters is that it is easy to realize three-dimensional superresolution, and the disadvantage is that the sidelobes of the axial intensity distribution are too high. But this can be overcome by the application of a confocal system.
© 2005 Optical Society of America
OCIS Codes
(070.2580) Fourier optics and signal processing : Paraxial wave optics
(100.6640) Image processing : Superresolution
(120.2440) Instrumentation, measurement, and metrology : Filters
Citation
Maojin Yun, Liren Liu, Jianfeng Sun, and De'an Liu, "Three-dimensional superresolution by three-zone complex pupil filters," J. Opt. Soc. Am. A 22, 272-277 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-2-272
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