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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 3 — Feb. 1, 2008
  • pp: 216–218

Trimodal imaging system capable of quantitative phase imaging without 2 π ambiguities

Kert Edward, Terrill W. Mayes, Bob Hocken, and Faramarz Farahi  »View Author Affiliations


Optics Letters, Vol. 33, Issue 3, pp. 216-218 (2008)
http://dx.doi.org/10.1364/OL.33.000216


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Abstract

A neoteric approach to interferometric phase imaging unencumbered by 2 π phase ambiguities is presented. This technique utilizes an actively controlled angular displacement glass plate positioned in the reference arm of an environmentally stabilized pseudoheterodyne Mach–Zehnder interferometer. The plate is continually adjusted to maintain a constant interferometric output phase, as a phase object in the sample arm is raster scanned. Using a 632.8 nm source, unwrapped phase images of translucent samples ranging from approximately 150 nm   to   1.5 μ m thick were obtained. This system is incorporated into a conventional near-field scanning optical microscope, which permits simultaneous phase, intensity, and surface morphology studies.

© 2008 Optical Society of America

OCIS Codes
(180.0180) Microscopy : Microscopy
(180.3170) Microscopy : Interference microscopy

ToC Category:
Imaging Systems

History
Original Manuscript: September 12, 2007
Revised Manuscript: December 6, 2007
Manuscript Accepted: December 11, 2007
Published: January 22, 2008

Virtual Issues
Vol. 3, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Kert Edward, Terrill W. Mayes, Bob Hocken, and Faramarz Farahi, "Trimodal imaging system capable of quantitative phase imaging without 2π ambiguities," Opt. Lett. 33, 216-218 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-3-216


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