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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 6 — Jun. 13, 2007

Aberration production using a high-resolution liquid-crystal spatial light modulator

Jason D. Schmidt, Matthew E. Goda, and Bradley D. Duncan  »View Author Affiliations


Applied Optics, Vol. 46, Issue 13, pp. 2423-2433 (2007)
http://dx.doi.org/10.1364/AO.46.002423


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Abstract

Phase-only liquid-crystal spatial light modulators provide a powerful means of wavefront control. With high resolution and diffractive (modulo 2 π ) operation, they can accurately represent large-dynamic-range phase maps. As a result, they provide an excellent means of producing electrically controllable, dynamic, and repeatable aberrations. However, proper calibration is critical to achieving accurate phase maps. Several calibration methods from previous literature were considered. With simplicity and accuracy in mind, we selected one method for each type of necessary calibration. We augmented one of the selected methods with a new step that improves its accuracy. After calibrating our spatial light modulator with our preferred methods, we evaluated its ability to produce aberrations in the laboratory. We studied Zernike polynomial aberrations using interferometry and Fourier-transform-plane images, and atmospheric aberrations using a Shack–Hartmann wavefront sensor. These measurements show the closest agreement with theoretical expectations that we have seen to date.

© 2007 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(050.1970) Diffraction and gratings : Diffractive optics
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Optical Devices

History
Original Manuscript: October 19, 2006
Revised Manuscript: December 19, 2006
Manuscript Accepted: December 22, 2006
Published: April 9, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Jason D. Schmidt, Matthew E. Goda, and Bradley D. Duncan, "Aberration production using a high-resolution liquid-crystal spatial light modulator," Appl. Opt. 46, 2423-2433 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-13-2423


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