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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Upconversion fiber-optic confocal microscopy under near-infrared pumping

Do-Hyun Kim, Jin U. Kang, and Ilko K. Ilev  »View Author Affiliations

Optics Letters, Vol. 33, Issue 5, pp. 425-427 (2008)

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We present a simple upconversion fiber-optic confocal microscope design using a near-infrared laser for pumping of a rare-earth-doped glass powder. The nonlinear optical frequency conversion process is highly efficient with more than 2% upconversion fluorescence efficiency at a near-infrared pumping wavelength of 1.55 μ m . The upconversion confocal design allows the use of conventional Si detectors and 1.55 μ m near-infrared pump light. The lateral and axial resolutions of the system were equal to or better than 1.10 and 13.11 μ m , respectively.

© 2008 Optical Society of America

OCIS Codes
(180.1790) Microscopy : Confocal microscopy
(190.7220) Nonlinear optics : Upconversion
(180.4315) Microscopy : Nonlinear microscopy

ToC Category:
Nonlinear Optics

Original Manuscript: October 16, 2007
Revised Manuscript: January 10, 2008
Manuscript Accepted: January 18, 2008
Published: February 20, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Do-Hyun Kim, Jin U. Kang, and Ilko K. Ilev, "Upconversion fiber-optic confocal microscopy under near-infrared pumping," Opt. Lett. 33, 425-427 (2008)

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