The study of the celestial phenomena in the hard X-ray/soft gamma-ray band(20 keV--1 MeV) is very intriguing but also very difficult to be performed with the needed sensitivity. In this review I will discuss the astrophysical importance of the soft gamma-ray astronomy, its difficulties to solve its issues with the current instrumentation, and a possible solution achievable using focusing Laue lens. Concerning these instruments, I will discuss their functioning principle, how to achieve a high reflection efficiency, their imaging properties, the current feasibility studies, the technological developments and observation prospects.
@article{arxiv.2502.10845,
title = {Hard X-ray/Soft gamma-ray Laue Lenses for High Energy Astrophysics},
author = {Filippo Frontera},
journal= {arXiv preprint arXiv:2502.10845},
year = {2026}
}