Open Access
18 April 2016 Lensless two-photon imaging through a multicore fiber with coherence-gated digital phase conjugation
Donald B. Conkey, Nicolino Stasio, Edgar E. Morales-Delgado, Marilisa Romito, Christophe Moser, Demetri Psaltis
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Abstract
We performed near-diffraction limited two-photon fluorescence (TPF) imaging through a lensless, multicore-fiber (MCF) endoscope utilizing digital phase conjugation. The phase conjugation technique is compatible with commercially available MCFs with high core density. We demonstrate focusing of ultrashort pulses through an MCF and show that the method allows for resolution that is not limited by the MCF core spacing. We constructed TPF images of fluorescent beads and cells by digital scanning of the phase-conjugated focus on the target object and collection of the emitted fluorescence through the MCF.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Donald B. Conkey, Nicolino Stasio, Edgar E. Morales-Delgado, Marilisa Romito, Christophe Moser, and Demetri Psaltis "Lensless two-photon imaging through a multicore fiber with coherence-gated digital phase conjugation," Journal of Biomedical Optics 21(4), 045002 (18 April 2016). https://doi.org/10.1117/1.JBO.21.4.045002
Published: 18 April 2016
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CITATIONS
Cited by 30 scholarly publications and 3 patents.
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KEYWORDS
Phase conjugation

Holograms

Two photon imaging

Calibration

Endoscopes

Diffraction

Spatial light modulators

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