Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2020.10.14.339416v1?rss=1 Authors: Hedde, P. N., Cinco, R., Malacrida, L., Kamaid, A., Gratton, E. Abstract: Hyperspectral imaging is highly sought after in many fields including mineralogy and geology, environment and agriculture, astronomy and, importantly, biomedical imaging and biological fluorescence. We developed ultrafast phasor-based hyperspectral snapshot microscopy based on sine/cosine interference filters to overcome the limitations of conventional hyperspectral imaging methods. Current approaches rely on slow spatial or spectral scanning limiting their application in living biological tissues, while faster snapshot methods such as image mapping spectrometry and multispectral interferometry are limited in spatial and/or spectral resolution, are computationally demanding, and devices are very expensive to manufacture. Leveraging light sheet microscopy, phasor-based hyperspectral snapshot microscopy improved imaging speed 10-100 fold and enabled previously elusive hyperspectral metabolic imaging of live, three-dimensional mouse tissues. As a fit-free method that does not require any a priori information, the phasor approach could also spectrally resolve subtle differences between cell types in the developing zebrafish retina and spectrally separate and track multiple organelles in 3D cultured cells. The sine/cosine snapshot method is adaptable to any microscope or imaging device thus making hyperspectral imaging broadly available to researchers and the public. Copy rights belong to original authors. Visit the link for more info