Axial imaging technologies in multiphoton microscopy
Advanced Devices & InstrumentationMultiphoton microscopy (MPM), with its excellent optical sectioning capability and deep tissue penetration, has become an important tool for neuroscience and biomedical imaging. However, efficient axial information acquisition remains a major challenge for high-speed volumetric imaging of dynamic biological processes. Recent advances in optical devices, light-field control, information encoding, and intelligent computing have expanded the approaches to axial imaging, ranging from single-point scanning and multifocal parallel imaging to continuous-beam coverage. This review summarizes these developments from the perspective of axial information acquisition, and further discusses light-field control for improving 3D imaging performance, providing an overview of the field and its future directions toward faster, deeper, and higher-quality volumetric MPM. Meanwhile, the focal control, temporal encoding, structured light fields, and computational reconstruction methods discussed in this review are highly transferable and can be extended to other laser-scanning microscopy modalities, such as coherent Raman and photoacoustic microscopy.
- Journal
- Advanced Devices & Instrumentation