Cargando…

High-speed axially swept light sheet microscopy using a linear MEMS phased array for isotropic resolution

Significance: Axially swept light sheet microscopy is used for deconvolution-free, high-resolution 3D imaging, but usually the axial scan mechanism reduces the top imaging speed. Phased arrays (PAs) for axial scanning enable both high resolution and high speed. Aim: A high-speed PA with an update ra...

Descripción completa

Detalles Bibliográficos
Autores principales: Landry, Joseph, Hamann, Stephen, Solgaard, Olav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Society of Photo-Optical Instrumentation Engineers 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7720907/
https://www.ncbi.nlm.nih.gov/pubmed/33098281
http://dx.doi.org/10.1117/1.JBO.25.10.106504
Descripción
Sumario:Significance: Axially swept light sheet microscopy is used for deconvolution-free, high-resolution 3D imaging, but usually the axial scan mechanism reduces the top imaging speed. Phased arrays (PAs) for axial scanning enable both high resolution and high speed. Aim: A high-speed PA with an update rate faster than the camera row read time is used to track the rolling shutter at camera-limited rates. Approach: The point spread function is evaluated to ensure sub-micron isotropic resolution, and the technique is demonstrated on a live Drosophila embryo. Results: Isotropic resolution is shown down to [Formula: see text] in all three spatial dimensions. With an update rate of [Formula: see text] , the PA tracks the camera sensor rolling shutter at camera-limited rates. Features in the Drosophila embryo are resolved clearly compared with the equivalent static light sheet case. The random-access nature of the PA enables a camera sensor readout in the same direction for each frame to maintain even temporal sampling in image sequences with no speed loss. Conclusions: Use of PAs is compatible with axially swept light sheet microscopy and offers significant improvements in speed.