Two-photon excitation selective plane illumination microscopy (2PE-SPIM) of highly scattering samples: characterization and application

作者：Lavagnino Zeno^*; Zanacchi Francesca Cella; Ronzitti Emiliano; Diaspro Alberto

来源：Optics Express, 2013, 21(5): 5998-6008.

DOI：10.1364/OE.21.005998

In this work we report the advantages provided by two photon excitation (2PE) implemented in a selective plane illumination microscopy (SPIM) when imaging thick scattering samples. In particular, a detailed analysis of the effects induced on the real light sheet excitation intensity distribution is performed. The comparison between single-photon and two-photon excitation profiles shows the reduction of the scattering effects and sample-induced aberrations provided by 2PE-SPIM. Furthermore, uniformity of the excitation distribution and the consequent improved image contrast is shown when imaging scattering phantom samples in depth by 2PE-SPIM. These results show the advantages of 2PE-SPIM and suggest how this combination can further enhance the SPIM performance. Phantom samples have been designed with optical properties compatible with biological applications of interest.

• 出版日期2013-3-11