Applications of Non- Diffracting Beams in Biological Microscopic Imaging

Non- diffracting beams have attracted attention in recent years due to their unique properties, such as diffractionfree propagation and self-repairing and self-accelerating ability, which make them promising candidates for microscopic imaging applications. Non-diffraction beams can suppress beam diffraction during propagation, thereby improving the imaging resolution. Moreover, their self- healing characteristic facilitates quick wave- front recovery after passing through a strongly scattering medium, enhancing imaging depth and signal-to- noise ratio. Their self- acceleration feature expands the detection dimension of light field information, enabling multi-dimensional reconstruction imaging. Based on the characteristics of several biological micro-imaging technologies, this paper discusses the application and research progress of non- diffracting beams, specifically Bessel and Airy beams, in high-resolution biological micro-imaging.