Dark-field Microscopy: Techniques and Applications

This lecture covers the principles and applications of dark-field microscopy, focusing on the contrast mechanisms in bright-field and dark-field microscopy. It explains the advantages of dark-field imaging, such as improved contrast, high sensitivity, and high resolution, making it valuable for materials science and biology. The lecture also discusses diffractive dark-field x-ray microscopy, detailing the Talbot effect and the use of gratings for self-imaging through Fresnel diffraction.