Conor McFadden, James D Manton, Holly Merta, Reto Fiolka
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引用次数: 0
Abstract
Oblique plane microscopy (OPM), a variant of light-sheet fluorescence microscopy (LSFM), enables rapid volumetric imaging without mechanically scanning the sample or an objective. In an OPM, the sample space is mapped to a distortion-free image space via remote focusing, and the oblique light-sheet plane is mapped onto a camera via a tilted tertiary imaging system. As a result, the 3D point-spread function and optical transfer function (OTF) are tilted to the optical axis of the tertiary imaging system. To satisfy Nyquist sampling, small scanning steps are required to encompass the tilted 3D OTF, slowing down acquisition and increasing sample exposure. Here, we show that a judicious amount of under-sampling can lead to a form of aliasing in OPM that can be recovered without a loss of spatial resolution while minimizing artifacts. The resulting speed gains depend on the optical parameters of the system and reach 2-4-fold in our demonstrations. We leverage this method for rapid subcellular 3D imaging of mitochondria and the endoplasmic reticulum.
期刊介绍:
The journal''s scope encompasses fundamental research, technology development, biomedical studies and clinical applications. BOEx focuses on the leading edge topics in the field, including:
Tissue optics and spectroscopy
Novel microscopies
Optical coherence tomography
Diffuse and fluorescence tomography
Photoacoustic and multimodal imaging
Molecular imaging and therapies
Nanophotonic biosensing
Optical biophysics/photobiology
Microfluidic optical devices
Vision research.