AI Article Synopsis
- A new type of microscope called the temporal focusing-based multiphoton excitation microscope (TFMPEM) uses a digital micromirror device for both light dispersion and simultaneous patterned illumination.
- This microscope has improved its axial excitation confinement (AEC) from 3.0 μm to 1.5 μm, enhancing focus by 50%.
- By employing the TFMPEM with a HiLo technique, biotissue images demonstrate significantly better contrast and reduced scattering, showcasing its effectiveness compared to traditional methods.
Article Abstract
A developed temporal focusing-based multiphoton excitation microscope (TFMPEM) has a digital micromirror device (DMD) which is adopted not only as a blazed grating for light spatial dispersion but also for patterned illumination simultaneously. Herein, the TFMPEM has been extended to implement spatially modulated illumination at structured frequency and orientation to increase the beam coverage at the back-focal aperture of the objective lens. The axial excitation confinement (AEC) of TFMPEM can be condensed from 3.0 μm to 1.5 μm for a 50 % improvement. By using the TFMPEM with HiLo technique as two structured illuminations at the same spatial frequency but different orientation, reconstructed biotissue images according to the condensed AEC structured illumination are shown obviously superior in contrast and better scattering suppression. Picture: TPEF images of the eosin-stained mouse cerebellar cortex by conventional TFMPEM (left), and the TFMPEM with HiLo technique as 1.09 μm spatially modulated illumination at 90° (center) and 0° (right) orientations.
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| http://dx.doi.org/10.1002/jbio.201600287 | DOI Listing |
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