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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 7820–7826

Focal modulation using rotating phase filters

Pedro J. Valle, Vidal F. Canales, and Manuel P. Cagigal  »View Author Affiliations


Optics Express, Vol. 18, Issue 8, pp. 7820-7826 (2010)
http://dx.doi.org/10.1364/OE.18.007820


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Abstract

We describe a simple method of refocusing optical systems that is based on the use of two identical phase filters. These filters are divided in annuli and each annulus is divided into sectors with a particular phase value. A controlled focus displacement is achieved by rotating one filter with respect to the other. This displacement is related with the filter parameters. Transverse responses are studied as a function of filters relative position. Furthermore, the experimental set up shows that theoretical prediction fit well with experimental results. The main advantage of this system is the ease of fabrication so that it could be useful in different applications requiring small size, light weight or thin systems, like mobile phone cameras, microscopy tomography, and others.

© 2010 OSA

OCIS Codes
(100.2980) Image processing : Image enhancement
(120.2440) Instrumentation, measurement, and metrology : Filters

ToC Category:
Image Processing

History
Original Manuscript: November 5, 2009
Revised Manuscript: February 15, 2010
Manuscript Accepted: March 9, 2010
Published: March 31, 2010

Citation
Pedro J. Valle, Vidal F. Canales, and Manuel P. Cagigal, "Focal modulation using rotating phase filters," Opt. Express 18, 7820-7826 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-8-7820


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References

  1. N. A. Riza, “Axial scanning confocal microscopy with no moving parts,” Opt. Photon. News 19(12), 33 (2008). [CrossRef]
  2. E. J. Botcherby, R. Juskaitis, M. J. Booth, and T. Wilson, “An optical technique for remote focusing in microscopy,” Opt. Commun. 281(4), 880–887 (2008). [CrossRef]
  3. C. A. López and A. H. Hirsa, “Fast focusing using a pinned-contact oscillating liquid lens,” Nat. Photonics 2(10), 610–613 (2008). [CrossRef]
  4. L. Dong, A. K. Agarwal, D. J. Beebe, and H. Jiang, “Adaptive liquid microlenses activated by stimuli-responsive hydrogels,” Nature 442(7102), 551–554 (2006). [CrossRef] [PubMed]
  5. S. Kuiper and B. H. W. Hendriks, “Variable-focus liquid lens for miniature cameras,” Appl. Phys. Lett. 85(7), 1128–1130 (2004). [CrossRef]
  6. D. Graham-Rowe, “Liquid lenses make a splash,” Nat. Photonics sample, 2–4 (2006). [CrossRef]
  7. H. Ren, S. Xu, Y. J. Lin, and S. T. Wu, “Adaptive-focus lenses,” Opt. Photon. News 19(10), 42–47 (2008). [CrossRef]
  8. L. W. Alvarez, “Two-element variable-power spherical lens,” U.S. patent 3,305,294 (1967).
  9. A. W. Lohmann and D. P. Paris, “Variable fresnel zone pattern,” Appl. Opt. 6(9), 1567–1570 (1967). [CrossRef] [PubMed]
  10. S. Bara, Z. Jaroszewicz, A. Kolodziejczyk, and V. Moreno, “Determination of basic grids for subtractive moire patterns,” Appl. Opt. 30(10), 1258–1262 (1991). [CrossRef] [PubMed]
  11. S. Bernet and M. Ritsch-Marte, “Adjustable refractive power from diffractive moiré elements,” Appl. Opt. 47(21), 3722–3730 (2008). [CrossRef] [PubMed]
  12. M. P. Cagigal, J. E. Oti, V. F. Canales, and P. J. Valle, “Analytical design of superresolving phase filters,” Opt. Commun. 241(4-6), 249–253 (2004). [CrossRef]
  13. ITME Institute of Electronic Materials Technology, Warsaw, Poland.

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