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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 13 — Jul. 1, 2010
  • pp: 2115–2117

Reconstructing unknown wavefronts by use of diffraction-intensity pattern subtraction

Yujing Han and Chen Zhang  »View Author Affiliations


Optics Letters, Vol. 35, Issue 13, pp. 2115-2117 (2010)
http://dx.doi.org/10.1364/OL.35.002115


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Abstract

We propose an easy method for unknown wavefront reconstruction by a typical Fourier transform system based on an amplitude-only spatial light modulator (SLM). The Fourier transform of the diffraction intensity pattern on the backfocal plane is the autocorrelation of the wavefront-transmitted SLM. Two intensity patterns were recorded when we set the transmittance of one corner pixel on the SLM as 0 and 1, separately, under the condition that the transmittances of the other pixels equal 1. The complex amplitude of the wavefront-transmitted SLM can be extracted from the Fourier transform of the diffraction intensity pattern subtraction without complicated calculations. The simulation results certifying our theories are also given. Our method provides us with an easy way for detecting the wavefront with high speed and high quality in real time without the reference wave.

© 2010 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.4790) Fourier optics and signal processing : Spectrum analysis
(100.0100) Image processing : Image processing
(100.3010) Image processing : Image reconstruction techniques
(260.0260) Physical optics : Physical optics
(070.6120) Fourier optics and signal processing : Spatial light modulators

ToC Category:
Image Processing

History
Original Manuscript: January 13, 2010
Revised Manuscript: April 23, 2010
Manuscript Accepted: May 26, 2010
Published: June 24, 2010

Citation
Yujing Han and Chen Zhang, "Reconstructing unknown wavefronts by use of diffraction-intensity pattern subtraction," Opt. Lett. 35, 2115-2117 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-13-2115

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