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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. 5, Iss. 3 — Feb. 10, 2010

Differential high-speed digital micromirror device based fluorescence speckle confocal microscopy

Shihong Jiang and John Walker  »View Author Affiliations


Applied Optics, Vol. 49, Issue 3, pp. 497-504 (2010)
http://dx.doi.org/10.1364/AO.49.000497


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Abstract

We report a differential fluorescence speckle confocal microscope that acquires an image in a fraction of a second by exploiting the very high frame rate of modern digital micromirror devices (DMDs). The DMD projects a sequence of predefined binary speckle patterns to the sample and modulates the intensity of the returning fluorescent light simultaneously. The fluorescent light reflecting from the DMD’s “on” and “off” pixels is modulated by correlated speckle and anticorrelated speckle, respectively, to form two images on two CCD cameras in parallel. The sum of the two images recovers a widefield image, but their difference gives a near-confocal image in real time. Experimental results for both low and high numerical apertures are shown.

© 2010 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.2990) Imaging systems : Image formation theory
(180.1790) Microscopy : Confocal microscopy
(180.2520) Microscopy : Fluorescence microscopy
(230.4685) Optical devices : Optical microelectromechanical devices

ToC Category:
Microscopy

History
Original Manuscript: August 25, 2009
Revised Manuscript: December 23, 2009
Manuscript Accepted: January 5, 2010
Published: January 19, 2010

Virtual Issues
Vol. 5, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Shihong Jiang and John Walker, "Differential high-speed digital micromirror device based fluorescence speckle confocal microscopy," Appl. Opt. 49, 497-504 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-49-3-497

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