Two-photon lensless endoscope Copy
Authors: Andresen ER, Bouwmans G, Monneret S, Rigneault H Date: 2013-09-01 • Pages: 20713-21 • PMID: 24103944 Article URL: http://www.ncbi.nlm.nih.gov/pubmed/24103944
We report a first demonstration of two-photon endoscopic imaging with a lensless endoscope. The endoscope probe is a double-clad bundle of single-mode fibers; point excitation and scanning is achieved by coherent combining of femtosecond light pulses propagating in the single-mode fibers; and back-scattered two-photon signal is collected through the multi-mode inner cladding. We demonstrate the two-photon endoscope on a test sample of rhodamine 6G crystals.