Multi-point scanning two-photon excitation microscopy by utilizing a high-peak-power 1042-nm laser

Anal Sci. 2015;31(4):307-13. doi: 10.2116/analsci.31.307.

Abstract

The temporal resolution of a two-photon excitation laser scanning microscopy (TPLSM) system is limited by the excitation laser beam's scanning speed. To improve the temporal resolution, the TPLSM system is equipped with a spinning-disk confocal scanning unit. However, the insufficient energy of a conventional Ti:sapphire laser source restricts the field of view (FOV) for TPLSM images to a narrow region. Therefore, we introduced a high-peak-power Yb-based laser in order to enlarge the FOV. This system provided three-dimensional imaging of a sufficiently deep and wide region of fixed mouse brain slices, clear four-dimensional imaging of actin dynamics in live mammalian cells and microtubule dynamics during mitosis and cytokinesis in live plant cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Survival
  • HeLa Cells
  • Humans
  • Imaging, Three-Dimensional
  • Lasers*
  • Mice
  • Microscopy, Confocal / instrumentation
  • Microscopy, Confocal / methods*
  • Nicotiana / cytology
  • Photons*
  • Ytterbium

Substances

  • Ytterbium