A microscope small enough to fit into a needle creates many new possibilities for optics in medicine. We have developed a range of optical coherence tomography (OCT) needle probes. Connected to an OCT scanner via a single mode fiber, the probes are constructed by fusing exact lengths of no-core fiber and graded-index fiber to focus a broadband light beam. We terminated the optics with anglepolished, gold-coated no-core fiber to deflect the beam. Encased in a needle (outer diameter 310 ?m), these probes are capable of 3-D imaging. However, the important developments of 2012 have been where we have taken these needle probes.
© 2012 Optical Society of America
Vol. 8, Iss. 1 Virtual Journal for Biomedical Optics
Robert A. McLaughlin, Bryden C. Quirk, Dirk Lorenser, Xiaojie Yang, Boon Y. Yeo, Andrea Curatolo, Kelsey M. Kennedy, Loretta Scolaro, Rodney W. Kirk, and David D. Sampson, "A Microscope in a Needle," Optics & Photonics News 23(12), 40-40 (2012)
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