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Conferences > CLEO_Europe > 2019 > ch_9 > ch_9_3
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ch_9_3

Sub-Nanosecond Pulsed Fiber Laser for 532nm Two-Photon Excitation Fluorescence (TPEF) Microscopy of UV transitions

Daniel Weng, Hubertus Hakert, Torben Blömker, Jan Philip Kolb, Matthias Strauch, Matthias Eibl, Philipp Lamminger, Sebastian Karpf, and Robert Huber

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Abstract

Two-photon microscopy is a powerful technique for in vivo imaging, due to its high penetration depth and axial sectioning. Usually excitation wavelengths in the near infrared are used. However, most fluorescence techniques for live cell imaging require labeling with exogenous fluorophores. It has been shown that shorter wavelengths can be used to excite the autofluorescence of endogenous proteins, e.g. tryptophan [1].

© 2019 IEEE

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