Latest article: imaging the Gouy phase shift in photonic nanojets
Recently released in Optics Letters, our article reports on the use of a commercial wavefront sensor to directly monitor and image the Gouy phase shift in photonic nanojets created by micrometer-sized dielectric spheres.
Compared to previous demonstrations, our approach does not require interferometric heterodyne or homodyne detections. Just plug-in the Sid4Bio camera from Phasics on the left/right port of the microscope, run the software, and get the phase image.
Such direct phase imaging using a commercial wavefront sensor should find applications in microscopy, diffractive optics, optical trapping, and point spread function engineering.