In our work, we used stimulated Brillouin scattering directly in the gas medium (such as air) filling a hollow-core fiber to realize a massive optical amplification, by a factor of 200,000.
Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Anton Lukashchuk
Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu, Junqiu Liu, Yang Liu, Jijun He, Anton Lukashchuk
Luc Thévenaz, Malak Mohamed Hossameldeen Omar Mohamed Galal, Yuting Yang