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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 18 — Sep. 4, 2006
  • pp: 8013–8018

Adaptive optics imaging system based on a high-resolution liquid crystal on silicon device

Quanquan Mu, Zhaoliang Cao, Lifa Hu, Dayu Li, and Li Xuan  »View Author Affiliations


Optics Express, Vol. 14, Issue 18, pp. 8013-8018 (2006)
http://dx.doi.org/10.1364/OE.14.008013


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Abstract

An adaptive optics imaging system is introduced in this paper. A high-resolution liquid crystal on silicon (LCOS) device was used as a phase-only wavefront corrector instead of a conversional deformable mirror. The wavefront aberration was detected by a Shack-Hartmann (SH) wavefront sensor, which has a wavefront measurement accuracy of λ/100 rms (λ = 0.6328 μm). Under this construction, Peak-to-Valley correction precision of 0.09 λ was reached. Furthermore, some low-frequency hot convection turbulence induced by an electric iron was compensated in real time at the same precision. The modulation transfer function (MTF) of this system was also measured before and after wavefront correction. Under the active correction of LCOS, the system reached the diffraction limited resolution approximately 65l p/mm on the horizontal direction. All of this showed the possibility of using this device in a high-resolution, low temporal turbulence imaging system, such as retinal imaging, to improve the resolution performance.

© 2006 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Adaptive Optics

History
Original Manuscript: June 12, 2006
Revised Manuscript: July 24, 2006
Manuscript Accepted: July 27, 2006
Published: September 1, 2006

Virtual Issues
Vol. 1, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Quanquan Mu, Zhaoliang Cao, Lifa Hu, Dayu Li, and Li Xuan, "An adaptive optics imaging system based on a high-resolution liquid crystal on silicon device," Opt. Express 14, 8013-8018 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-18-8013


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References

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