Super-resolving quantum LADAR with even coherent states sources at shot noise limit
Qiang Wang, Yong an Zhang, Xu Yang, Lu Tie Xu, Chenhua Yang, Yuehao Liu, Yuan Zhe Zhao, Qiang Wang, Lili Hao · 2015
We have derived a quantum LADAR scheme which exploits even coherent states of light, is shot noise limit in sensitivity and can resolve features much below Rayleigh diffraction limit. For a return power of n = 100, the resolution of our proposed scheme can reach 120 times higher than the classical diffraction limit in the sense of the well-define narrow feature. More importantly, our scheme has the super-resolving characteristics in the usual sense of word as there are multiple narrow peaks as would be the case in a N00N-states scheme.