Resolution-Enhanced Imaging Based upon Spatial Depolarization of Light

  • D. Sylman
  • Z. Zalevsky
  • V. Micó
  • J. Garcı́a


In this paper, we present a new approach allowing the surpassing of the diffraction-based limitation for the achievable resolution provided by imaging systems. It is based on an encoding–decoding process of various spatial pixels or regions in the field of view of the imaged object by orthogonal and differently time-varying polarization states. The reconstruction of the original spatial information is obtained by applying a decoding process in a way similar to the encoding one. Although all the spatial information is summed and mixed together by the system, the decoding provides super-resolved imaging since in every spatial position the undesired spatial information having time-varying polarization dependence, which is uncorrelated to the decoding sequence applied on that specific spatial position, is averaged to zero and, on the other hand, the information which corresponds to that specific spatial region is being reinforced. The proposed approach can be used not only for super-resolved imaging but also for imaging module that maintains the same spatial resolution while providing enlarged field of view.


Polarization State Spatial Region Lateral Region Original Object Illumination Source 
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  1. 1.
    Z. Zalevsky and D. Mendlovic “Optical Super Resolution,” Springer, New york (2002).Google Scholar
  2. 2.
    Z. Zalevsky, D. Mendlovic, and A. W. Lohmann, “Optical system with improved resolving power,” Progress in optics, Vol. XL, Ch. 4 (1999).Google Scholar
  3. 3.
    M. Francon, “Amelioration de resolution d’optique,” Nuovo Cimento Suppl. 9, 283–290 (1952).Google Scholar
  4. 4.
    W. Lukosz, “Optical systems with resolving powers exceeding the classical limits,” J. Opt. Soc. Am. 56, 1463–1472 (1967).Google Scholar
  5. 5.
    A. I. Kartashev, “Optical systems with enhanced resolving power,” Opt. Spectrosc. 9, 204–206 (1960).ADSGoogle Scholar
  6. 6.
    J. D. Armitage, A. W. Lohmann, and D. P. Parish, “Superresolution image forming systems for objects with restricted lambda dependence” Jpn. J. Appl. Phys. 4, 273–275 (1965).Google Scholar
  7. 7.
    S. A. Alexandrov and D. D. Sampson, “Spatial information transmission beyond a system’s diffraction limit using optical spectral encoding of the spatial frequency,” J. Opt. A: Pure Appl. Opt. 10, 025304 (5pp) (2008).Google Scholar
  8. 8.
    D. Mendlovic, J. Garcia, Z. Zalevsky, E. Marom, D. Mas, C. Ferreira, and A. W. Lohmann, “Wavelength multiplexing system for a single mode image transmission,” Appl. Opt. 36, 8474–8480 (1997).Google Scholar
  9. 9.
    J. Solomon, Z. Zalevsky, and D. Mendlovic, “Geometrical superresolution using code division multiplexing,” Appl. Opt. 42, 32–40 (2005).Google Scholar
  10. 10.
    W. Lukosz, “Optical systems with resolving powers exceeding the classical limits II,”J. Opt. Soc. Am. 57, 932–41 (1967).Google Scholar
  11. 11.
    Z. Zalevsky, P. García-Martínez and J. García, “Superresolution using gray level coding,”Opt. Express 14, 5178–5182 (2006).Google Scholar
  12. 12.
    Z. Zalevsky, J. Garcia, P. Garcia-Martinez, and C. Ferreira, “Spatial information transmission using orthogonal mutual coherence coding,” Opt. Lett. 20, 2837–2839 (2005).Google Scholar
  13. 13.
    V. Mico, J. García, C. Ferreira, D. Sylman, and Z. Zalevsky, “Spatial information transmission using axial temporal coherence coding,” Opt. Lett. 32, 736–738 (2007).Google Scholar
  14. 14.
    A. W. Lohmann and D. Paris, “Superresolution for nonbirefringent objects,” J. Opt. Soc. Am. 3, 1037–1043 (1964).Google Scholar
  15. 15.
    A. Zlotnik, Z. Zalevsky, and E. Marom, “Superresolution with nonorthogonal polarization coding,” Appl. Opt. 44, 3705–3715 (2005)Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.School of EngineeringBar-Ilan UniversityRamat-GanIsrael

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