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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 15 — Aug. 1, 2014
  • pp: 4446–4449

Full-field interferometric confocal microscopy using a VCSEL array

Brandon Redding, Yaron Bromberg, Michael A. Choma, and Hui Cao  »View Author Affiliations

Optics Letters, Vol. 39, Issue 15, pp. 4446-4449 (2014)

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We present an interferometric confocal microscope using an array of 1200 vertical cavity surface emitting lasers (VCSELs) coupled to a multimode fiber. Spatial coherence gating provides ~18,000 continuous virtual pinholes, allowing an entire en face plane to be imaged in a snapshot. This approach maintains the same optical sectioning as a scanning confocal microscope without moving parts, while the high power of the VCSEL array (5mW per laser) enables high-speed image acquisition with integration times as short as 100 μs. Interferometric detection also recovers the phase of the image, enabling quantitative phase measurements and improving the contrast when imaging phase objects.

© 2014 Optical Society of America

OCIS Codes
(110.4980) Imaging systems : Partial coherence in imaging
(180.1790) Microscopy : Confocal microscopy
(180.3170) Microscopy : Interference microscopy

ToC Category:

Original Manuscript: May 1, 2014
Manuscript Accepted: June 6, 2014
Published: July 24, 2014

Virtual Issues
Vol. 9, Iss. 10 Virtual Journal for Biomedical Optics

Brandon Redding, Yaron Bromberg, Michael A. Choma, and Hui Cao, "Full-field interferometric confocal microscopy using a VCSEL array," Opt. Lett. 39, 4446-4449 (2014)

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