TY - JOUR T1 - Light-sheet engineering using the Field Synthesis theorem JF - bioRxiv DO - 10.1101/700633 SP - 700633 AU - Bo-Jui Chang AU - Reto Fiolka Y1 - 2019/01/01 UR - http://biorxiv.org/content/early/2019/07/13/700633.1.abstract N2 - Recent advances in light-sheet microscopy have enabled sensitive imaging with high spatiotemporal resolution. However, the creation of thin light-sheets for high axial resolution is challenging, as the thickness of the sheet, field of view and confinement of the excitation need to be carefully balanced. Some of the thinnest light-sheets created so far have found little practical use as they excite too much out-of-focus fluorescence. In contrast, the most commonly used lightsheet for subcellular imaging, the square lattice, has excellent excitation confinement at the cost of lower axial resolving power. Here we leverage the recently discovered Field Synthesis theorem to create light-sheets where thickness and illumination confinement can be continuously tuned. Explicitly, we scan a line beam across a portion of an annulus mask on the back focal plane of the illumination objective, which we call it C-light-sheets. We experimentally characterize these light-sheets and their application on biological samples. ER -