T. Juffmann, S. Nimmrichter, F. Balzarotti and J. Dong
Photoniques 131 (2025), DOI: 10.1051/photon/202513158
The precise localization of particles yields structural and dynamical information in applications ranging from fundamental physics to molecular biology. Here, we discuss how the concept of (Quantum) Fisher information can guide the development of localization techniques. Starting from dipole scattering, we discuss imaging based on elastic and inelastic (e.g. fluorescence) scattering and present experimental designs that increase the information obtained per detected photon.