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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 5 — Feb. 10, 2009
  • pp: 919–923

Visually testing the dynamic character of a blazed-angle adjustable grating by digital holographic microscopy

Chuan Qin, Jianlin Zhao, Jianglei Di, Le Wang, Yiting Yu, and Weizheng Yuan  »View Author Affiliations

Applied Optics, Vol. 48, Issue 5, pp. 919-923 (2009)

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We employed digital holographic microscopy to visually test microoptoelectromechanical systems (MOEMS). The sample is a blazed-angle adjustable grating. Considering the periodic structure of the sample, a local area unwrapping method based on a binary template was adopted to demodulate the fringes obtained by referring to a reference hologram. A series of holograms at different deformation states due to different drive voltages were captured to analyze the dynamic character of the MOEMS, and the uniformity of different microcantilever beams was also inspected. The results show this testing method is effective for a periodic structure.

© 2009 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(180.6900) Microscopy : Three-dimensional microscopy
(090.1995) Holography : Digital holography
(100.5088) Image processing : Phase unwrapping

ToC Category:

Original Manuscript: August 26, 2008
Revised Manuscript: December 16, 2008
Manuscript Accepted: December 16, 2008
Published: February 2, 2009

Chuan Qin, Jianlin Zhao, Jianglei Di, Le Wang, Yiting Yu, and Weizheng Yuan, "Visually testing the dynamic character of a blazed-angle adjustable grating by digital holographic microscopy," Appl. Opt. 48, 919-923 (2009)

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