Sub-Diffraction-Limited Multi-Color Multiphoton Imaging with a Single Laser Source and Single Photon Avalanche Detector Array

Abstract

We demonstrate sub-diffraction-limited simultaneous two- and three-photon imaging, using a high-power ultrafast fiber laser and single-photon avalanche detector array. Despite the 3-times longer excitation wavelength, our demonstration outperforms standard confocal microscopy of the same samples.