Multimodal light-sheet microscopy for fluorescence live imaging

Light-sheet microscopy, it is known as single plane illumination microscope (SPIM), is a fluorescence imaging technique which can avoid phototoxic effects to living cells and gives high contrast and high spatial resolution by optical sectioning with light-sheet illumination in developmental biology. We have been developed a multifunctional light-sheet fluorescence microscopy system with a near infrared femto-second fiber laser, a high sensitive image sensor and a high throughput spectrometer. We performed that multiphoton fluorescence images of a transgenic fish and a mouse embryo were observed on the light-sheet microscope. As the results, two photon images with high contrast and high spatial resolution were successfully obtained in the microscopy system. The system has multimodality, not only mutiphoton fluorescence imaging, but also hyperspectral imaging, which can be applicable to fluorescence unmixing analysis and Raman imaging. It enables to obtain high specific and high throughput molecular imaging in vivo and in vitro.